SOL 8.PFA.3 Understanding Linear Functions and Variables

What is the slope of the function y = 3x + 4

What is the y-intercept of the function y = 2x - 5

What is the slope of the function shown?

What is the y-intercept of the function shown?

Dilcia wants to know how drinking milk affects how tall a Monica grows. Which is the independent variable?

• Monica's growth
• drinking milk

Ramone wants to know: does the distance a person kicks a soccer ball effect how well they will do on their math test.  What is the dependent variable?

• How far they kick the soccer ball
• who the person is
• how well they do on the math test
• Type of soccer ball.

What is the INDEPENDENT variable? You are testing which type of paper airplane goes furthest?

• the paper used

• the type of paper airplane

• the distance of each plane's flight

• how hard the plane is thrown

Does the type of shoe worn during a 30 meter dash affect the speed of the runner? The speed of the runner is the...

• independent variable

• dependent variable

What effect does decreasing the temperature of a room have on a lifespan of a battery? The temperature of the room is the...

• independent variable

• dependent variable

How does watching TV during studying affect a student’s test grades? Student's grades are the....

• independent variable

• dependent variable