Answer: 19!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
Explanation:
Use the slope formula to find the slope. y2-y1/x2-x1
Substitute the points into the formula to find the slope.
25-16/3-0 = 9/3
Substitute the x and y values as well as the known slope in the formula y=mx+b
In this case, we'll choose the 2nd point (3, 25) and substitute it and solve for b.
25 = 9/3(3) + b
b = 16.
The question is asking for the sum of the slope and the y-int, so we're not quite done yet.
Add 9/3 with 16 and you'll have your answer of 19.