15
Step-by-step explanation:
f(-3)=(-3)^2 - 2(-3)
= 9 + 6 = 15
9514 1404 393
Answer:
Put the value where the variable is and do the arithmetic.
f(-3) = (-3)² -2(-3) = 9 +6
f(-3) = 15
2910 ….....................….......
5x+9=x-23
5x-x=-23-9
4x= -32
4x/4=-32/4
x=-8
y=7x-10
It's which gives 5.23 times increase in 10 years, so 523% of oryginal price