Question

4r + 2f ≤ 40 A graph shows r on the x-axis, from 0 to 18, and f on the y-axis, from 0 to 20. Two solid lines are shown. The first line has a negative slope and goes through (0, 20) and (10, 0). Everything to the left of the line is shaded. The second line has a negative slope and goes through (0, 16) and (16, 0). Everything above the line is shaded. What is the maximum number of ride tickets she can buy? 4 6 10 12

Answer 1

Answer: 16

Explanation:

To determine the maximum number of ride tickets she can buy, we need to find the region that satisfies the given inequality and is shaded by both lines on the graph.

The first line has a negative slope and passes through the points (0, 20) and (10, 0). This line represents the inequality 4r + 2f ≤ 40.

The second line also has a negative slope and passes through the points (0, 16) and (16, 0). This line represents the inequality 4r + 2f ≤ 40.

It's not on the answer choice but it's 16.