Answer: Direction opens downward
Step-by-step explanation:
X-Intercept: (1/14,0),(-1/4,0)
Y-Intercept: (0,1)
Find the vertex using x= -b/2a
Plug it into the vertex form = y=a(x-h)^2 +k
H,K will identify the direction.
Answer:
13
Step-by-step explanation:
because 12+5=17 which is what she spent and 17-4=13 because she had a coupon of 4 dollor off
The answer is going to be 3,495
Data:
If:
2 red pencils → 25% or 0.25
So:
"y" pencils → 75% or 0.75
The rule of three: (<span>directly proportional)
</span>

<span>multiply cross
</span>




<span>how many pencils are in his backpack?
</span><span>Add the values of the pencils
</span>

<span>
</span>
A) multiply by 2 both sides, canceling the ÷ by 2
4x - 1 = 2x + 14
+1
4x = 2x +15
-2x
2x. = 15
÷2
x = 7.5
B) mutiply 3 both sides
9x + 6 = 2x + 13
-6
9x. = 2x + 7
-2x
7x. = 7
÷1
x = 1
Hope this helps!