Chapter 4 Study Guide And Review Math Worksheet With Answer Key - Cognero Page 12
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17ANSWER:
Study Guide and Review - Chapter 4
y = −2x − 7
Write an equation in slope-intercept form for the line that passes through the given point and is
perpendicular to the graph of the given equation.
43. (2, 4), y = 3x + 1
SOLUTION:
The slope of the line with equation y = 3x + 1 is 3. The slope of the perpendicular line is the opposite reciprocal of 3,
or − .
ANSWER:
45. (−5, 2), y =
x + 4
SOLUTION:
The slope of the line with equation y =
x + 4 is
. The slope of the perpendicular line is the opposite reciprocal of
, or −3.
ANSWER:
y = −3x − 13
47. Determine whether the graph shows a positive , a negative, or no correlation. If there is a positive or negative
correlation, describe its meaning.
eSolutions Manual - Powered by Cognero
Page 12
SOLUTION:
The graph shows a positive correlation. As the number of hours spent studying increases, the test scores increase.
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