Answer:
y = x + 13
Step-by-step explanation:
1. Use the coordinates to find the slope. (y2-y1)÷(x2-x1) = slope. Substitute values. (11-20)÷(-2-7)= (-9)÷(-9)=1
y=1x+b
2. Substitute coordinates to find b (y-intercept). Let's use (7,20). 20=7+b. b=13
3. Put it all together.
y=x+13
