Question

Given a point P on a line with slope m; find the y-coordinate of the point with the given x-coordinate,
P(2,-5)
m=6
X = 3.5

Answer 1

Answer:

y = 4

Step-by-step explanation:

find full equation by plugging in P

y = mx + b

y = 6x + b

-5 = 6(2) + b

-5 = 12 + b

b = -17

y = 6x - 17

find y-value by plugging in x-value to equation

y = 6(3.5) - 17

y = 21 - 17

y = 4