Question

Given the relation y=3x² + 1, if the input is 4, what is the output?
13
48
49
145

Pls only serious ​

Answer 1

$3 {x}^{2} + 1 \\( 3) {4}^{2} + 1 \\ 3 \times 16 + 1 \\ 48 + 1 = 49$