9514 1404 393
Answer:
D) Vertex = (0,-1), y-intercept = (0,-1), x-intercepts = (-3,0) and (3,0), axis of symmetry is x = 0
Step-by-step explanation:
The vertex is the y-intercept. Its coordinates are (0, -1).
The axis of symmetry is the vertical line through the vertex. Its equation is x=0.
These observations are sufficient for you to choose the correct answer (D).
Answer:
y⁴ - 2y²
General Formulas and Concepts:
<u>Pre-Algebra</u>
<u>Algebra I</u>
Step-by-step explanation:
<u>Step 1: Define</u>
4y⁴ - (3y² + 3y⁴) + y²
<u>Step 2: Simplify</u>
- Distribute negative: 4y⁴ - 3y² - 3y⁴ + y²
- Combine like terms (y⁴): y⁴ - 3y² + y²
- Combine like terms (y²): y⁴ - 2y²
Answer:
Maximum customer= 53
Minimum customer= 47.
Step-by-step explanation:
Given: On average, 45 people buy lemonade.
Customer can vary by as much as 8 people.
Now, finding maximum and minimum number of customer, Meghan should expect.
We know, the average number of customer in Meghan´s stand is 45.
As given, customer can vary by as much as 8, which means it can increase by 8 customer or decrease by 8 customer.
∴ Maximum customer= ![45+8= 53\ customers](https://tex.z-dn.net/?f=45%2B8%3D%2053%5C%20customers)
Minimum customer= ![45-8= 37\ customers](https://tex.z-dn.net/?f=45-8%3D%2037%5C%20customers)
Hence, The maximum number of customer is 53 and minimum number of customer is 37.
The mean can be found by adding the two numbers and dividing by 2
let the second number be y
(x + y)/2 = 1/2x + 1
solve for y
multiply each side by 2
x + y = 2(1/2x + 1)
distribute
x + y = x + 2
subtract x on both sides
y = 2
ANSWER: the second number is 2