Question 79242
y=mx+3 [slope-intercept equation of the line]
5=m(-2)+3 [substitute the values of x=-2 and y=5; and solve for the m-term]
5-3=-2m+3-3
2=-2m
2/-2=-2m/2
-1=m
.
check by plugging all of the values back into the original equation and solve]
y=mx+3 [original equatino]
(5)=(-1)(-2)+3
5=2+3
5=5 [checks out]