Algebra I (Common Core) Practice Exam Worksheet With Scoring Key And Rating Guide - Mike Miller Page 13
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40Use this space for
23 Jerome is comparing average rates of change of the four
computations.
functions below.
f(x) = (0.5)2
g(x) = 0.5x
h(x) =
j(x) =
2
3
x + 2
3x + 7
x
Which function has the smallest average rate of change over
the interval –1 ≤ x ≤ 6?
(1) f(x)
(3) h(x)
(2) g(x)
(4) j(x)
24 The number of hours spent watching TV the weekend before a
math test and the test results for thirteen students in Mr.
Marshall’s class are plotted below and a line of best fit is
drawn.
Time spent watching TV, in hours
If the equation of the line is y = –5.9x + 91.9, which statement
is false?
(1) The slope of the line indicates that the test score and time
spent watching TV are negatively correlated.
(2) The linear model predicts an approximate 6-point drop in
test score for one hour spent watching TV.
(3) The y-intercept of the line indicates that a student who
spends no time watching TV will get the highest test score.
(4) The linear model predicts an approximate test score of 92
if no time is spent watching TV.
Algebra I – Practice Exam
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