Question

What is the y-intercept when a line has a slope of 1/2 and

passes
through the point (2, -1)?

Answer 1

-2

Explanation:

y=ax+b

Put the numbers into that equation.

-1=1/2*2+b

Simplify:

-1=1+b

-1-1=b

-2=b

Hope this helped! :)