Answer:
Acute and Obtuse..I cant see any right
Step-by-step explanation:
Find the vertex:

Determine if the parabola will open up or down:

Since the value of a is positive, the parabola will open upwards
Find the x and y intercepts:
Factor
to find the x intercepts
(x+8)(x+2)
x + 8 = 0
x = -8
x + 2 = 0
x = -2
x intercepts:
x = -2
x = -8
Find the y intercept

Hence, C. Graph A best represents the quadratic function 
The answer is -2.76.
Hope I Helped (=^-^=)
Answer:
p(r+1)
Step-by-step explanation:
Hope this helps