Answer:
y = - 2(x - 1)² + 18
Step-by-step explanation:
- 2x² + 4x + 16 ← factor out - 2 from the first 2 terms
= - 2(x² - 2x) + 16
using the method of completing the square
add/subtract ( half the coefficient of the x- term)² to x² - 2x
= - 2(x² + 2(- 1)x + 1 - 1) + 16
= - 2(x - 1)² + 2 + 16
= - 2(x - 1)² + 18 ← in vertex form
Answer:
Step-by-step explanation:
You are looking for the point of intersection of these two functions.
Substitution:
- This are now your formulas
- You are going to substitute x, so you can solve for y
- Now you are going to substitute y to find x
- Now lets check if it is correct
So it is true, making (-4 , -5) your point of intersection.
hope it helps
45,000 would be her new salary.
25,000 × .8 = 20,000.
20,000 + 25,000 = $45,0000.
We can see from this survey that 7 teenagers prefer rock and roll.
The number of all teenagers in the survey is:
12 + 5 + 7 + 6 + 6 + 4 = 40
P ( rock ) = 7 / 40
Answer: C ) 7 / 40
The answer is 50 hope this helped lol
