Practice this; if you can solve it, you’re well prepared for the SAT.
Essential Formulas
Slope: m = (y2 - y1) / (x2 - x1)
Slope-intercept: y = mx + b
Point-slope: y - y1 = m(x - x1)
Standard form: Ax + By = C
Distance between two points: d = sqrt[(x2-x1)^2 + (y2-y1)^2]
Midpoint: M = ((x1+x2)/2, (y1+y2)/2)
Absolute value equation: |ax + b| = c => ax + b = c OR ax + b = -c