Finding Slope Worksheet With Answer Key Page 7
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10Name: ________________________
ID: A
Write the equation of a line that is perpendicular to the given line and that passes through
the given point.
____ 17. 4x – 12y = 2; (10, –1)
y = −3x + 29
a.
y = 3x + 29
c.
1
1
y = −
y = −
b.
x + 29
d.
x + 7
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2
____ 18. y =
x + 9; (–6, 5)
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2
2
y = −
x + 1
y =
x + 9
a.
c.
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3
3
3
3
y = −
x +
y = −
x − 4
b.
d.
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2
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Short Answer
19. Suppose you have $20.00 to buy cold cuts for a class picnic. Ham costs $3.99 per pound and turkey costs
$4.99 per pound. The equation 3.99x + 4.99y = 20 models this situation. What does the x-intercept of
the graph of the equation tell you about the amount of meat you can buy?
Essay
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20. Write y =
x – 11 in standard form. Show your work. Justify each step.
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21. Use the map to answer the following. Show your work.
a. What is the slope of the line representing Elm Street?
b. Show that Birch Street and Poplar Avenue are parallel.
c. Show that Fir Street is NOT perpendicular to Birch Street.
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