Answer:
y=4.5x+22 (4.5 goes in first box, 22 goes in second box).
Explanation:
For starters, you can use that line in the middle, a.k.a. the line of best fit, to help set up your equation.
The equation is in slope-intercept (y=mx+b) form, where m is slope and b is y-intercept.
From the given numbers and the graph, it looks like the y-intercept is about 22 so you can drag the 22 in the last box, where the 'b' should be. your equation is now y=mx+22.
For the slope, just calculate rise over run. I've counted and gotten about 9/2, which equals 4.5 (which is in the choices), which is your slope.
Your final equation is now y=4.5x+22. Hope this helps.