Rewrite each expression using the distributive property. 1. (a X 4) + (a x 3) =
1 answer:
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Answer:
C 28
Step-by-step explanation:
Put the given value where x is in the expression and do the arithmetic.
-2(3(-3) -2) +(-3) +9
= -2(-9 -2) -3 +9
= -2(-11) -3 +9
= 22 -3 +9
= 19 +9
= 28
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