Study Guide And Review Math Worksheet With Answer Key - Chapter 4 Page 6
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9ANSWER:
ANSWER:
Study Guide and Review - Chapter 4
y = 3x + 3
Write an equation in slope-intercept form for
42. (−5, −2), y =
x + 4
the line that passes through the given point and
is perpendicular to the graph of the given
SOLUTION:
equation.
44. (1, 3), y = −2x − 4
The slope of the line with equation y =
x + 4 is
SOLUTION:
The slope of the line with equation y = −2x − 4 is −2.
. The line parallel to y =
x + 4 has the same
The slope of the perpendicular line is the opposite
slope,
.
reciprocal of −2, or
.
ANSWER:
ANSWER:
46. (3, 0), y =
x
Write an equation in slope-intercept form for
the line that passes through the given point and
SOLUTION:
is perpendicular to the graph of the given
equation.
The slope of the line with equation y =
x is
.
44. (1, 3), y = −2x − 4
The slope of the perpendicular line is the opposite
SOLUTION:
reciprocal of
, or 2.
The slope of the line with equation y = −2x − 4 is −2.
The slope of the perpendicular line is the opposite
reciprocal of −2, or
.
ANSWER:
y = 2x − 6
48. ATTENDANCE A scatter plot of data compares
the number of years since a business has opened and
its annual number of sales. It contains the ordered
pairs (2, 650) and (5, 1280). Write an equation in
slope-intercept form for the line of fit for this
ANSWER:
situation.
SOLUTION:
Find the slope of the line containing the given points.
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Page 6
46. (3, 0), y =
x
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