Question

In slope-intercept form, what is the equation of the line containing the points (−1, 2) and (2, −1

Answer 1

Use formula y= mx+b for the problem

Answer 2

You can use the slope formula (y sub 2 minus y sub 1 divided by x sub 2 minus x sub 1) to find the slope. You then use the point-slope formula y-y₁=m(x-x₁). "M" is the slope in the point-slope formula. Then solve for y to put it in slope-intercept form (y = mx + b). I got y = -1x + 1.