A comprehensive course covering essential 8th grade math concepts to prepare students for high school and real-world problem solving.
A function is a special relationship where each input connects to exactly one output. Think of it as a math machine: put in a value, and you get one result!
To graph \( y = x + 2 \), pick values for \( x \), find \( y \), and plot the points. Connect with a straight line for linear functions.
Functions are everywhere—calculating paychecks, tracking distances, and predicting trends.
The function \( y = 3x \) means if you input 2, output is 6.
Graphing \( y = x - 1 \) makes a straight line.
A function pairs each input with one output, often shown with graphs and equations.