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24 February, 16:08

1 Which choice is the equation of a line that has a y-intercept of 7 and is parallel to the line represented by this equation?

y = 6x - 5

A. y = 6x + 7

B. y = 6x - 7

C.

D.

2

Which choice could be the equation of a line parallel to the line represented by this equation?

7x - 12y = - 32

A.

B.

C.

D. y = 7x - 12

3

Which choice is the equation of a line that passes through the origin and is parallel to the line represented by this equation?

4x - y = - 8

A. 8x - y = - 4

B. 4x - 8y = 0

C. y = - 4x

D. 4x - y = 0

4

Which choice could be the equation of a line perpendicular to the line represented by this equation?

y = 5

A. y = 4x - 9

B. y = - 1/5x

C. y = 5x

D. x = 5

+3
Answers (2)
  1. 24 February, 18:02
    0
    Question 1)

    y=mx+b

    m = slope

    b = y-intercept

    In this case, the answer is y=6x+7 (same slope of 6 and + 7 y intercept)

    Question 2)

    The equation you are looking for is one with a slope (m) of 7/12 and a y-intercept (b) of 8/3, or ~2.667. The Equaion is y=4x+8/3

    Question 3)

    Rewrite the equation 4x-y=-8 for slope-intercept form, y=4x+8

    Linear equations that go through the origin always have a y-intercept (b) of exactly 0.

    We are looking for an equation with a slope equal to 4, and a y-intercept of 0.

    y=4x is the answer, which can be rewritten at 4x-y=0 D.
  2. 24 February, 18:51
    0
    The answer to equation 4 is C
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