Question

Write an equation in slope-intercept form of the line with the given slope and point: slope = 3 and (1, -2).
A. y = 3x - 5
B. y = 3x - 2
C. y = 3x + 1
D. y = 3x + 3

Answer 1

y = mx + b
slope(m) = 3
(1,-2) x = 1 and y = -2
now we sub and solve for b
-2 = 3(1) + b
-2 = 3 + b
-2 - 3 = b
-5 = b
so your equation is : y = 3x - 5

any questions ?