Lisa M. answered 09/08/13
Tutor
4.9
(120)
High School and College Math and Science Tutoring
y=mx + b
the slope is given as m=2; y=2x + b
Now we use the point (3, 4) to find the value for b, the y-intercept.
4= 2(3) + b ==> b= -2
y = 2x - 2