If * is an operation such that \(a * b = 3a-4b\), find the value of \(3*4\)
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → -7
The operation is defined by \(a*b=3a-4b\): three times the first number minus four times the second. Here \(a=3\) and \(b=4\).
\(3*4=3\times3-4\times4\)
\(=9-16=-7\)