Question

What is a point-slope equation of the line with slope -10 that goes through the point (1,4)?

A. y+4= -10(x+1)

B. y-4= -10(x-1)

C. y-4=10(x-1)

D. y+4=10(x+1)

(Apex)

Answer 1

B

Explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

here m = - 10 and (a, b) = (1, 4), hence

y - 4 = - 10(x - 1) → B