If s(x) = 2 - x^2 and t(x) = 3x, which value iS equivalent to (s°f)(-7)?

Step-by-step explanation:

(s∘t)(-7) = s(t(-7))

= s(3(-7))

= s(-21)

= 2 - (-21)²

= -439

part a

x     y

0     8

1     7.5

2     7

3     6.5

4     6

5     5.5  

for every hour i deducted .5 inches from the length of the candle

part b

it is a function because for every x value there is only one y value

part   c

for every x value there is only one y value

x       y

0       8

1       7.6

2       7.2

3       6.8

step-by-step explanation: