As x decreases y also decreased
Answer:
<h2>yes this is right and true</h2>
The parabola will show the vertex in the format: y-k = (x-h)^2, where the vertex point
lies at (h, k).
let's first put it in "y =" standard format:
Since we cannot get a perfect square out of this, we complete the square: a=1, b=2, c=3
(b/2)^2 = (2/2)^2 = 1, so
So there's +2 leftover, since 3-1=2; so:
Now we'll subtract the 2 from both sides to show our vertex:
where our vertex (h, k) is at (-1, 2)
Given:
The expression is:
To find:
The value of the given expression when .
Solution:
We have,
Substituting in the above expression, we get
Therefore, the value of given expression at is 59.
The cost of the roll = 125 * 45 = 5625 cents
5625 / 100 = 56.25 $