Answer
y-4=8(x-0)
y=8x+4
Work Step by Step
If the x-intercept is -$\frac{1}{2}$, then the line contains the point (-$\frac{1}{2}$,0). If the y-intercept, represented by the letter b, is 4, then the line contains the point (0,4).
m=$\frac{y_2-y_1}{x_2-x_1}$
m=$\frac{4-0}{0+\frac{1}{2}}$
m=$\frac{4}{\frac{1}{2}}$
m=4(2)
m=8
y-y$_1$=m(x-x$_1$)
y-4=8(x-0)
This is point slope form.
y=mx+b
y=8x+4
