Question

f(x) = 2x + 1; g(x) = x2 Which is the value of (f ◦ g)(–5)?

Answer 1

\[f\circ g(-5)=f(g(-5))\] so your first job is to find \(g(-5)\)
do you know what that number is?

Answer 2

2 ( -5^2 ) +1
so...... 2* (-25) +1? how am I doing there?

Answer 3

i would do it one step at a time
also notice that \(x^2\) means square the input, so that \(g(-5)=(-5)^2=25\) not \(-5^2=-25\)

Answer 4

but if you prefer to do it your way, that would work as well, but it should be \(2\times (-5)^2+1\)

Answer 5

so the 25 is positive. so the answer would be 51?