Mean is the average of all the numbers added together, then divided by the total amount of numbers. So 11+9+2+9+6+17 = 54 and there are 6 numbers so you divide 54 by 6 = 9
Answer:
Step-by-step explanation:
g(6) = 3(6) + 3
= 18+3
= 21
y=(x+3)^2-13 is the vertex form
Step-by-step explanation:
Answer:
f(x)= x^2+x-12
Step-by-step explanation:
FOIL
First= (x)(x)=x^2
Outer=(x)(4)=4x
Inner=(-3)(x)=-3x
Last=(-3)(4)=-12
x^2+4x-3x-12
x^2+x-12