Answer:
B C and D
Step-by-step explanation:
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Answer:
C. 8a - 36
Step-by-step explanation:
a + 3a - 4(9-a)
a + 3a - 36 + 4a
8a - 36
Answer:
The x-intercepts are
(x1,y1)=(4,0)
(x2,y2)=(6,0)
Step-by-step explanation:
we know that
The equation of the given parabola is
we have
the vertex is the point (5,-4)
substitute
The y-intercept is the point (0,96)
substitute and solve for a
The equation of the vertical parabola is equal to
Find the x-intercepts
Remember that
The x-intercepts are the values of x when the value of y is equal to zero
For y=0
Simplify
Rewrite
square root both sides
therefore
The x-intercepts are
(x1,y1)=(4,0)
(x2,y2)=(6,0)
Answer:
Option D. minimum value at −38
Step-by-step explanation:
we have
Let
Complete the square
------> equation of a vertical parabola in vertex form
The vertex is the point
The parabola open upward-----> the vertex is a minimum
therefore
minimum value at −38