-2x^2+8x+5 is the standard form
Answer:
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#1
Clear shown in graph
#2
No
At. no where graph passes through origin so y intercept is not 0 at anywhere
#3
Domain is x values
#4
Range is y values set
Answer:
Step-by-step explanation:
Decrease = 97 - 75 = 22
Percentage of decrease=

= 22.68
= 23%