Question

What is the value of the function y=1.3x+22 when x=-7? y= -----------

Answer 1

$\rm y=1,3x+22 \\ y=1,3*(-7)+22 \\ y=22-9,1 \\\rm{ \bold{y=12,9}}$

Answer 2

$y=1.3x+22$

$y=1.3(-7)+22$

$y = 12.9$