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Write the equation of the line that pass through (0,2) and (1,-3)A) y = -5x + 10B) y = -5x + 2C) y = 5x - 2D) y = 2x - 5

User Andrew Dolby
by
2.9k points

1 Answer

27 votes
27 votes

We are given these points that should belong to the line: (0, 2) and (1, -3).

The correct choice is that for which both points make the equation true.

For example, take the point x = 0, y = 2 and substitute in A):

y = -5x + 10

2 = -5(0) + 10

2 = 10

This is false, so A) is not the answer.

Now B):

y = -5x + 2

Substitute x = 0, y = 2

2 = -5(0) + 2

2 = 2

This is true. Now for the other point x = 1, y = -3:

-3 = -5(1) + 2

-3 = -5 + 2

-3 = -3

This is also true, thus the answer is B)

We can check the other choices and no one of them verifies the substitution of both points.

User Ryan Hoegg
by
3.4k points
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