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Select all equations that are parallel to the line 2x+5y=8

A. y=2/5+4
B. y=-2/5+4
C. y-2=2/5(x+1)
D. y-2=-2/5(x-1)
E. 10x+25y=40

1 Answer

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Answer:

The given equation is in the form 2x + 5y = 8.

To find equations that are parallel to this line, we can look for equations with the same slope, 2/5.

The slope-intercept form of a line is y = mx + b, where m is the slope.

Let's look at the given options:

A. y = 2/5 + 4 (This is not in the slope-intercept form)

B. y = -2/5x + 4 (This has the same slope, -2/5, so it is parallel to the given line)

C. y - 2 = 2/5(x + 1) (This is not in the slope-intercept form)

D. y - 2 = -2/5(x - 1) (This has the opposite slope, -2/5, so it is parallel to the given line)

E. 10x + 25y = 40 (We need to rewrite this in the slope-intercept form)

To rewrite E in the slope-intercept form, we must solve for y:

25y = -10x + 40

y = (-10/25)x + 40/25

y = (-2/5)x + 8/5 (This has the same slope, -2/5, so it is parallel to the given line)

So the equations parallel to the line 2x + 5y = 8 are:

B. y = -2/5x + 4

D. y - 2 = -2/5(x - 1)

E. y = -2/5x + 8/5

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