Solving Quadratic Functions

Practice Questions

SAT Subject Test in Math I › Solving Quadratic Functions

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1

Find the roots of the function:
$\small f(x)=x^2+4x-12$

2

A baseball is thrown straight up with an initial speed of 50 feet per second by a man standing on the roof of a 120-foot high building. The height of the baseball in feet, as a function of time in seconds , is modeled by the function

$h(t) = -16t^{2}+50t + 120$

To the nearest tenth of a second, how long does it take for the baseball to hit the ground?

3

Define $f (x) = x^{2} - 5$ and .

Find $(g \circ f) (x)$

4

Solve:

5

Find the roots for

6

Find the roots of .

7

Find the roots for

8

FInd the roots for

9

Solve for x.

$x^{2}-7x+10=0$

10

$y=x^{2}-2x-3$

Factor the above function to find the roots of the quadratic equation.

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