Question

Which is an equation in point-slope form for the given point and slope?

Point: (–3, 7); Slope: 4




y – 7 = 4(x – 3)


y – 7 = 4(x + 3)




y + 7 = 4(x + 3)



y + 7 = 4x – 12

Answer 1

see explanation

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 = 4 and (a, b) = (- 3, 7), hence

y - 7 = 4(x - (- 3)), that is

y - 7 = 4(x + 3) ← second equation in the list