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castortr0y [4]
2 years ago
11

If a line has a slope of 4 and contains the point (-2,5), what is its equation in slope form?

Mathematics
1 answer:
melomori [17]2 years ago
6 0

Answer:

y-y1=m(x-x1)

y-5=4(x + 5)

y-5=4x+20

5. 5

y = 4x + 25

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Call the two equations above A and B, in order to not confuse them.

A: -2x + 6y = -38

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For this system we have opposites in x and y, so Elimination (or Linear Combination) works best. Either variable works, so let's work with x first and multiply A by 3 and B by 2. This is done so we get opposites in A and B then when added together give zero.

-2x + 6y = -38 ------> multiply by 3 ----> -6x + 18y = -114

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