Answer correct for brainliest and a ! don't answer if you don't know it : ) and it's blurry some so just zoom in !

The percent of variation is 85.1%.  If you enter the numbers into a calculator and store the regression equation, it will be the r^2 value when calculated.

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!