Question

i need help slope intercept form m =2 and (-1,5)

Answer 1

y=mx+b m=2 x=-1 y=5
5=2(-1)+b
5=-2+b
add 2 to both sides
7=b

y=2x+7

Answer 2

i dont get add 2 what 2 sides like 5+2= 7 just add that y +2

Answer 3

5=-2+b
+2 +2
7=b
do you know how to solve equations?