<span>B. f(x) = x^2 + 6x - 7
All you have to do is foil
</span>
Answer:
vertex =
(
4 , 25
)
Step-by-step explanation:
given a parabola in standard form y
= a
x
2
+
b
x
+
c
x
;
a
≠
0
then the x-coordinate of the vertex is
X vertex=-b/2a
y=-x2+8x+9 with a=-1 b=8 c=9
X vertex= -8/-2=4
substitute the value on the equation
Y vertex = -(4)squared+8(4)+9=25
Answer:
She stopped to rest for 45 minutes.
Step-by-step explanation:
It's where the line is straight. What's the second question?
2.54-1.66
0.88
the answer is 0.88
