Writing Linear Functions

Writing an Equation for Linear Functions

Written descriptions

Multiple Select

What does the m stand for? Select all that apply.

• slope

• constant rate of change

• initial value

• y-intercept

Multiple Select

Which are key words for constant rate of change? Select all that apply.

• per

• each

• start

• every

• begin

Multiple Select

What does the b stand for? Select all that apply.

• slope

• constant rate of change

• initial value

• y-intercept

Multiple Select

Which of the following can help you find the initial value? Select all that apply.

• rise/run

• look for when x=0

• the point where the line hits the y-axis

• change in y / change in x

• key words: start, begin

Multiple Select

Which are key words for initial value? Select all that apply.

• per

• one-time fee

• start

• every

• begin

Multiple Choice

Write an equation to represent the linear function: Mrs. Sauer has a rock collection. Mr. Sauer gave her 3 rocks to start. Mrs. Sauer adds 1 rock to her collection each week.

• y=x+3

• y=3x+1

• y=1/3x

Multiple Choice

Write an equation to represent the linear function: One day, Mrs. Fox tried to go skiing. She started at the top of a 400 foot hill and fell down at a rate of 20 feet per minute.

• y=20x+400

• y=-20x+400

• y=400x+20

• y=400x-20