20 POINTS BRAINLIEST FOR CORRECT ANSWER !! PLEASE HELP Describe the similarities and differences between the graphs of the functions in items 8 and 9. How are these similarities and differences indicated by the functions themselves?

Item 8: y=x^2-3x-4
Item 9: y=-x^2+3x+4

Step-by-step explanation:

similarities:

both items (equations) have the same roots: (-1,0) and (4,0),

both items are in quadratic form

differences:

both have different y-intercepts:

item 8: (0,-4)

item 9: (0,4)

both have a relative min/max at x=1.5

Step-by-step explanation:

40x + 100 = 375

40x = 275

x = 6.875

The mechanic can work a maximum of 6.88 hours without exceeding Ms. Salgado's budget.