Unit Test — Unit test Answers

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The table shows how far a distance runner has traveled since the race began. What is her average rate of change, in miles per hour, during the interval 0.75 to 1.00 hours?Time Elapsed (Hours)Miles Traveled (Miles)0.502.000.753.501.004.75

A
4.75 miles per hour
B
5.00 miles per hour
C
5.50 miles per hour
D
6.00 miles per hour
22
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Which graph represents y – 1 = 2(x – 2)?

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
23

If u(x) = x5 – x4 + x2 and v(x) = –x2, which expression is equivalent to ?

Question illustration
A
x3 – x2
B
–x3 + x2
C
–x3 + x2 – 1
D
x3 – x2 + 1
24

Which function is most likely graphed on the coordinate plane below?

Question illustration
A
f(x) = 3x – 11
B
f(x) = –4x + 12
C
f(x) = 4x + 13
D
f(x) = –5x – 19
25

What is the average rate of change in f(x) over the interval [4,13]?

Question illustration
A
One-third
Option A
B
Four-thirteenths
Option B
C
Eleven-thirteenths
Option C
D
Eleven-eighths
Option D

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