Answer: 15
Step-by-step explanation: Linear equations can be written in the form
y = mx + b where the base "b" represents the y-intercept of the line.
So in this case, the y-intercept of the line would positive 15.
The equation can written as y = 4x + 15.
This equation is written in slope-intercept. y = mx + b
m = slope
b = y-intercept
In this equation the y-intercept (b) is 15.
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