Question

PLEASE HELP!!!Which is an equation in point-slope form for the line that passes through the points (−1,4) and (3,−4)?

100 POINTS!!!!!

Answer 1

• y - 4 = - 2(x + 1)

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Given

• Points (-1, 4) and (3, - 4)

Find the slope

• m = (- 4 - 4)/(3 - (-1)) = - 8/4 = - 2

Use one of the points and the point-slope form

• y - y₁ = m(x - x₁)
• y - 4 = - 2(x - (-1)) ⇒ y - 4 = - 2(x + 1)