1
1. For f(x) =
x²-3
find:
(a) f(3) (3 points)
(b) f(2+h) (3 points)

f(x) = 1/ x² - 3

f(3) = 1 / 3²- 3

=1/6

f(2+h) = 1 / (2+ h) ² - 3

= 1 / 4 + 4h + h² - 3

therefore...

f(2 + h) = 1 / 1 + 4h + h²

walter needs to make at least 5 more cookies but no more than 40. 5 ≤ x ≤ 40

step-by-step explanation:

20 ≤ x + 15 ≤ 55

subtract 15 from all parts

20-15 ≤ x + 15-15 ≤ 55-15

5 ≤ x ≤ 40

this means how many more cookies he has to make

walter needs to make at least 5 more cookies, but no more than 40 cookies; 5 ≤ x ≤ 40