How to find x or y intercept - High School Math
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A straight line passes through the points 
and 
.
What is the 
-intercept of this line?
A straight line passes through the points
What is the
First calculate the slope:
The standard equation for a line is 
.
In this equation, 
is the slope of the line, and 
is the 
-intercept. All points on the line must fit this equation. Plug in either point (1,3) or (2,2).
Plugging in (1,3) we get 
.
Therefore, 
.
Our equation for the line is now:
To find the 
-intercept, we plug in 
:
Thus, the 
-intercept the point (4,0).
First calculate the slope:
The standard equation for a line is
In this equation,
Plugging in (1,3) we get
Therefore,
Our equation for the line is now:
To find the
Thus, the
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What is the x-intercept of the following equation?
What is the x-intercept of the following equation?
We want to find the x-intercept, which is the point at which the graph crosses the x-axis. Every point on the x-axis has a y-value of 0. Thus, to find the x-intercept we just need to plug 0 in for y.
Thus, 
.
Dividing both sides by 
, we get 
.
We want to find the x-intercept, which is the point at which the graph crosses the x-axis. Every point on the x-axis has a y-value of 0. Thus, to find the x-intercept we just need to plug 0 in for y.
Thus,
Dividing both sides by
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Calculate the y-intercept of the line depicted by the equation below.
Calculate the y-intercept of the line depicted by the equation below.
To find the y-intercept, let 
equal 0.
We can then solve for the value of 
.
The y-intercept will be 
.
To find the y-intercept, let
We can then solve for the value of
The y-intercept will be
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What is the y-intercept of the equation?
What is the y-intercept of the equation?
To find the y-intercept, we set the 
value equal to zero and solve for the 
value.
Since the y-intercept is a point, we will need to convert our answer to point notation.
To find the y-intercept, we set the
Since the y-intercept is a point, we will need to convert our answer to point notation.
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What is the x-intercept of the equation?
What is the x-intercept of the equation?
To find the x-intercept of an equation, set the 
value equal to zero and solve for 
.
Subtract 
from both sides.
Multiply both sides by 
.
Since the x-intercept is a point, we will want to write it in point notation: 
To find the x-intercept of an equation, set the
Subtract
Multiply both sides by
Since the x-intercept is a point, we will want to write it in point notation:
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What is the y-intercept of the equation?
What is the y-intercept of the equation?
To find the y-intercept, we set the 
value equal to zero and solve for the value of 
.
Since the y-intercept is a point, we want to write our answer in point notation: 
.
To find the y-intercept, we set the
Since the y-intercept is a point, we want to write our answer in point notation:
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What is the 
-intercept of the equation?
What is the
To find the x-intercept of an equation, set the 
value equal to zero and solve for 
.
Subtract 
from both sides.
Divide both sides by 
.
Since the x-intercept is a point, we will write our answer in point notation: 
.
To find the x-intercept of an equation, set the
Subtract
Divide both sides by
Since the x-intercept is a point, we will write our answer in point notation:
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What is the x-intercept of 
?
What is the x-intercept of
To find the x-intercept, set y equal to zero and solve:
Subtract 
from both sides:
Divide both sides by 
to isolate x:
To find the x-intercept, set y equal to zero and solve:
Subtract
Divide both sides by
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What is the y-intercept of 
?
What is the y-intercept of
To find the y-intercept, set the x value to zero and solve:
To find the y-intercept, set the x value to zero and solve:
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What is the y-intercept of 
What is the y-intercept of
To solve for the y-intercept, set the x value equal to zero:
To solve for the y-intercept, set the x value equal to zero:
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What is the x-intercept of 
?
What is the x-intercept of
To solve for the x-intercept, set the y value equal to zero:
Subtract 
from both sides:
To solve for the x-intercept, set the y value equal to zero:
Subtract
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What is the y-intercept of 
?
What is the y-intercept of
Isolate for 
so that the equation is in slope-intercept form 
.
The 
is the y-intercept, which in this case, is 
.
Isolate for
The
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What are the 
-intercepts of 
?
What are the
Factor out an 
from the original equation so that it is 
.
Set that expressions equal to 
so that you can find the 
-intercepts. Your answers are 
and 
.
Factor out an
Set that expressions equal to
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Find the 
-intercept of 
.
Find the
Put the equation in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.
-5y = 3x + 10
y = (-3/5)x + 10/(-5)
Now we can easily see that 
is the 
-intercept.
Put the equation in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept.
-5y = 3x + 10
y = (-3/5)x + 10/(-5)
Now we can easily see that
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Find the 
-intercepts of 
Find the
Take out a 
from the original equation so that you can set the expression 
equal to 
and get your 
-intercepts 
and 
.
Take out a
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What is the y-intercept of the following curve?
What is the y-intercept of the following curve?
The y-intercept of a curve is the value of that curve when the x-coordinate is 
. Thus, we plug in 
to our equation, yielding 
.
The y-intercept of a curve is the value of that curve when the x-coordinate is
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What is the y-intercept of 
?
What is the y-intercept of
When looking at an equation in standard 
form, 
is our y-intercept.
Or, set the 
value equal to 
and solve.
When looking at an equation in standard
Or, set the
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What is the x-intercept of 
?
What is the x-intercept of
To solve for the x-intercept, we set the 
value equal to 
and solve.
To solve for the x-intercept, we set the
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Find the x and y-intercepts of the following equation:
Find the x and y-intercepts of the following equation:
To find the y-intercept, substitute zero for x and solve for y:
The y-intercept is at point 
.
To find the x-intercept, substitute zero for y and solve for x:
The x-intercept is at point 
.
To find the y-intercept, substitute zero for x and solve for y:
The y-intercept is at point
To find the x-intercept, substitute zero for y and solve for x:
The x-intercept is at point
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What is the x-intercept of 
?
What is the x-intercept of
To find the x-intercept, we set 
and solve.
Subtract 
from both sides.
Divide both sides by 
.
Simplify.
To find the x-intercept, we set
Subtract
Divide both sides by
Simplify.
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