The operation * on the set R of real number is defined by x * y = 3x + 2y − 1, find 3* − 1
Answer Details
The operation * on the set R of real numbers is defined as x * y = 3x + 2y − 1. To find 3 * −1, we need to substitute x = 3 and y = −1 into the equation and simplify. So, we have:
3 * −1 = 3 * 3 + 2 * −1 − 1
= 9 + −2 − 1
= 6
So, the answer is 6.