For what values of y does the binomial 5y−7 belong to the interval (−5, 13)?
Accepted Solution
A:
Answer: [0.4,4]
Explanation: The get the values of y belonging to the given interval, we will simply solve the following inequality: -5 ≤ 5y - 7 ≤ 13 -5 + 7 ≤ 5y ≤ 13 + 7 2 ≤ 5y ≤ 20 2/5 ≤ y ≤ 20/5 0.4 ≤ y ≤ 4