7.2 Quiz Review

Which one is NOT a function?

• The cube of a number x plus one.

• {(10,3), (5,-2), (36,6), (10,-3), (5,2)}

• y=12x+5

Which one is NOT a function?

• 
• 
• 

Write an equation for the table

• y=5.50x

• y=16.5x +3

• y=3x + 16.5

What type of graph makes a straight line and can be written as y=mx+b

• Nonlinear

• Linear

Who makes the most per hour?

• Sam

• Richard

• Bob

Who has a y intercept at a point other than (0,0)? (select all that apply)

• Sam

• Richard

• Bob

What is the y-intercept for the graph?

• 5/2

• 3

• -1

• 0

What is the rule for the function in the table below?

• y=2x

• y=1/2x

• For every input value, the output value doubles

• For every input value, the output value is half.

Which points lie on the line representing the function?

• (-2,-2)

• (4,2)

• (2,4)

• (-5,-4)

Josie is making paper airplanes. The equation she uses is y = -4x + 250. How much paper will she have after making 20 airplanes?

• 250

• 170

• 270

• 246