This is quite simple. We will first add the amount of miles walked together.
3.25+5.5=8.75
Then we will divide 175 by the number of miles walked which in this case is 8.75.
Then we get 20 which is the amount of money that his parents donated for every mile that he walked.
Critical points is where the derivative (slope) is zero or does not exist. So to do this we have to find the derivative of our function:
So we apply chain rule:
=
Set our first derivative to zero and solve for x:
3(x^2 - 1) * 2x = 0
So we can see that (by plugging in) 0, -1 and 1 makes our solution true
So our critical value is x = 0, x = -1, x = 1
Answer:
It’s b
Step-by-step explanation:
Just think
Answer: y = 7x²
<u>Step-by-step explanation:</u>
The general form of a quadratic equation is: y = a(x - h)² + k where
- "a" represents the vertical stretch
- "h" represents the shift to the left (or right)
- "k" represents the shift up (or down)
- (h, k) represents the vertex
Given the parent function y = x², a vertical stretch by a factor of 7 means the a-value is 7 ⇒ y = 7x²