Graph help

Question

Graph C = 75 + 25x, for x ≤ 50

Answer 1

You already have your equation.

 

Substitute x values and solve for C.  Then plot  P(x, C).

 

P(x₁, C₁) = (50, 75+25(50))

P(x₂, C₂) = (49, 75+25(49))

P(x₃, C₃) = (48, 75+25(48))

P(x₄, C₄) = (47, 75+25(47))

 

You are basically decreasing the x value one by one, starting at x=50, and plotting those points using the same equation.