Answer:
y=2x+7
Step-by-step explanation:
Y=mx+b
y=2x has a rise of 2 and a run of 1 ( goes up two and over one)
to find use the change in slope formula (y2-y1)/(x2-x1) that are on the line
I used (0,0), (1,2)
(2-0)/(1-0)
2/1
your change in slope is 2
To find the y-intercept which is b you have to enter the point (-2,3) into the original equation
y=2x+b
3=2(-2)+b
3=-4+b
3+4=b
7=b
therefore your final equation is y=2x+7