Algebraic Expression Worksheet (Page 4 of 4) in pdf

Algebraic Expression Worksheet Page 4

Practice Test - Chapter 1

21. f (−6y)

SOLUTION:

22. Identify the function graphed as linear or nonlinear.

Then estimate and interpret the intercepts of the

graph, any symmetry, where the

function is positive, negative, increasing, and

decreasing, the x-coordinate of any relative extrema,

and the end behavior of the graph.

SOLUTION:

Linear or Nonlinear: The graph is not a line, so the

function is nonlinear.

x- and y-Intercepts: The x- and y-intercepts are 0.

This means that no gadgets have been sold prior to

being released.

Symmetry: The graph has no line symmetry.

Positive/Negative: The function is positive for all

values of x, so the total number of gadgets sold is

always positive.

Increasing/Decreasing: The function is increasing

for all values of x so the total number of gadgets sold

is always increasing.

Extrema: There are no relative maximum or relative

minimum values.

End Behavior: As x increases, y increases. As time

increases, the total number of gadgets sold continues

to increase, but at a much slower rate than during

months 0 to 24.

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