Question 61107
y=mx+b [slope-intercept form of a line]
y=any y value of the line
m=the slope of the line
x=any corresponding x value of the line
b=the y-intercept (the point where the line crosses the y-axis at point (0,b)]
.
So, the slope 4 and y-intercept (0, –5) 
y=mx+b [substitute the values for the slope and y-intercept]
y=4x-5