Question

Let y = safe load in pounds and x = depth in inches for a certain type of rectangular horizontal beam. A constant of proportionality exists such that y = kx². Determine the constant k for a beam with y = 1,000 pounds and x = 5 inches.

A. 40
B.100
C.200

Answer 1

Answer: 40

Step-by-step explanation: I got it right on OW

Answer 2

A. 40. The formula y = kx² is the problem being presented y = 1,000 and x = 5. Plug in the values to solve
1000 = k * 5^2 (square 5 to get)
1000 = k*25
divide both sides by 25
1000/25 = 40
40 = k