H(x) = - 1/4(x)2 + 5
d:
r:
y-int:
x-int:
vertex:
min or max

Step-by-step explanation:

Domain: all real numbers

Range: (5, infinity)

Y-int: (0,5)

X-int: none

Vertex (0,5)

MINIMUM

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