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16 May, 17:21

Fred's art project involves a series of parallel stripes If he starts by drawing the line 8x + 2y = 7, select all the equations that could represent lines

that could also be drawn for his art project

A. y-1 = 4 (X + 8)

B. y = - 4x + 15

C. 16x + 4y = 9

D. y=-4X

E. 4x + 2y = 3

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  1. 16 May, 20:59
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    B. y = - 4x + 15

    C. 16x + 4y = 9

    D. y=-4X

    Step-by-step explanation:

    Two lines are parallel if they have the same slope. The equation of a line is:

    y = mx + b

    Where m is the slope and b is a constant.

    So, the slope of the first equation can be calculated solving the equation for y as:

    8x + 2y = 7

    2y = - 8x + 7

    y = - 4x + 7/2

    So, the slope is - 4.

    It means that all the equations that could represent lines that could also be drawn for his art project are the equation with a slope equal to - 4.

    Then, for every option, we get:

    A. y-1 = 4 (X + 8)

    y = 4x + 32 + 1

    The slope is 4

    B. y = - 4x + 15

    The slope is - 4

    C. 16x + 4y = 9

    4y = - 16x + 9

    y = - 4x + 9/4

    The slope is - 4

    D. y=-4X

    The slope is - 4

    E. 4x + 2y = 3

    2y = - 4x + 3

    y = - 2x + 3/2

    The slope is - 2

    Finally, the equations that are parallel to the line 8x + 2y = 7 are equations B, C and D
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