Chris and Denisha are electricians. • Chris uses the equation c = 504 +65 to calculate how much he charges, c, in dollars, for h hours of work.
• Denisha uses the equation d = 37.50h + 75 to calculate how much she charges, d, in dollars, for h hours of work.
How much do Chris and Denisha charge per hour of work? Enter the answers in the boxes.
Chris charges $
per hour.
Denisha charges S
per hour.

How to solve it and what thw answer is

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Does the function satisfy the hypotheses of the mean value theorem on the given interval? f(x) = 4x^2 + 3x + 4, [−1, 1] no, f is continuous on [−1, 1] but not differentiable on (−1, 1). no, f is not continuous on [−1, 1]. yes, f is continuous on [−1, 1] and differentiable on (−1, 1) since polynomials are continuous and differentiable on . there is not enough information to verify if this function satisfies the mean value theorem. yes, it does not matter if f is continuous or differentiable; every function satisfies the mean value theorem.