26-03-2020
Mathematics

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I am not sure about any of my answers and I don’t know how to find the range for question b or the slope for question c.

I am not sure about any of my answers and I dont know how to find the range for question b or the slope for question c class=

Respuesta :

amna04352 amna04352

26-03-2020

Answer:

a) is correct

b) y = -a(x - 2.5)² + h

(5.5,0)

0 = -a(5.5-2.5)² + h

h = 9a

a = h/9

48 = -a(0-2.5)² + h

h = 48 + 6.25a

h = 48 + 6.25(h/9)

h = 157.0909090681

Range: [0,157]

c) (80-144)/(4.5-3)

= -42⅔ or -42.67

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