Answer:
18
Step-by-step explanation:
Find the equation for the line in slope-intercept form: y = mx + b.
x and y are points on the line. Points are written in the form (x, y).
m is the slope.
b is the y-intercept, when it hits the y-axis.
Substitute the point (4, 4) and slope. x = 4; y = 4; m = -2. Find b
y = mx + b
4 = (-2)(4) + b
4 = -8 + b
b = 4 + 8
b = 12
Get the equation of the line using slope and the y-intercept.
y = -2x + 12
Substitute -3 as x and find the missing y.
y = -2(-3) + 12
y = 6 + 12
y = 18
The point was (-3, 18)
Therefore the missing value for y is 18.
