Compare Functions

Consider the relation shown in the figure.
Which ordered pairs show that the relation is not a function?

• (0,-2) and (0,1)

• (0,1) and (2,1)

• (1, 2) and (3,4)

• None, because this mapping is a function

Which graphs represent functions?

• Graph B and C only

• Graph B, C and D only

• Graph A only

• All of the graphs represent functions.

The 2 tables show a relationship between x and y values. What do the 2 linear functions have in common?

• y-intercept

• x-intercept

• 2 common points

• identical slopes

Which has a positive slope?

• Only Function 1

• Only Function 3

• Both functions 1 & 3

• Both functions 2 & 3

Which statement is true about the rate of change of the two functions?

• Both functions have negative rates of change.

• Both functions have positive rates of change.

• Function 1 has a negative rate of change, while that of Function 2 is positive.

• Function 1 has a positive rate of change, while that of Function 2 is negative.

Which statement is true?

• The graph is decreasing and linear when x is less than −1.

• The graph is decreasing and linear when x is between −1 and 1.

• The graph is decreasing and linear when x is more than 2.

• The graph is decreasing and nonlinear when x is more than 2.

Which of these best describes the behavior from A to B in the given graph?

• linear and increasing

• non linear and increasing

• linear and decreasing

• non linear and decreasing

Is the graph pictured a linear or nonlinear function?

• Linear

• Nonlinear

Is the equation linear or nonlinear?

• Linear

• Nonlinear

Is the function linear or nonlinear?
y = ⅓ x

• Linear

• Nonlinear