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

a. y−3=−2(x+4)y−3=−2(x+4)

b. y+4=−2(x−3)y+4=−2(x−3)

c. y+4=2(x−3)y+4=2(x−3)

d. y−4=2(x+3)

78.59 is the mean

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