In a certain mill the cost C in thousands of dollars of producing x tons of steel is given by

C = 0.3x + 3.5.

The revenue R in thousands of dollars from selling x tons is given by

R = 0.5x.

a. Graph each equation in the same coordinate plane. (Let the vertical axis represent cost or revenue in thousands of dollars.)

b. Find the point at which R = C (the break-even point).

c. What does the difference R – C measure for all x greater than the x-coordinate of the break-even point?

Question

In a certain mill the cost C in thousands of dollars of producing x tons of steel is given by

C = 0.3x + 3.5.

The revenue R in thousands of dollars from selling x tons is given by

R = 0.5x.

a. Graph each equation in the same coordinate plane. (Let the vertical axis represent cost or revenue in thousands of dollars.)

b. Find the point at which R = C (the break-even point).

c. What does the difference R – C measure for all x greater than the x-coordinate of the break-even point?

anonymous · Answer

the only thing i've found is 
b. (17.5,8.75)