Answer:
640x²-380x
Step-by-step explanation:
(4x]+4[(10x-6)(4x)]4x+(40x-24)(16x)
4x+640x²-384x
640x²-384x+4x
640x²-380x
The coordinates of the parabolas vertex is (1,-5)
Next, the domain is (-infinity, infinity) and so is the range.
The minimum is -5 and the maximum is infinity.
I hope this helps!
Answer:
The scale factor of the following dilation is, 0.5
Step-by-step explanation:
The rule of dilation with scale factor k is given by:

As per the statement:
Given the following dilation:
(10, 0) → (5, 0) .....[1]
We have to find the scale factor.
Using the above rule we have;

Now compare this with equation [1] we have;
(10k, 0) = (5, 0)
⇒10k = 5
After solving we get;

Therefore, the scale factor of the following dilation is, 0.5
Let x be the number of students going
Let y be the total cost
Then,
7x=y
7(26)=y
$182=y
Therefore, the total cost would be $182 for 26 students to go.
Hope I helped :)
F(x)=0
x^2+5x-14=0
(x-2)(x+7)=0
x=2 or x=-7