# Algebra

I need a function rule for the following:

X Y

-2 -2

0 1

1 3

1. 👍
2. 👎
3. 👁
1. You posted this already and were given a method to do it by fitting a parabola of form ax^2 + bx + c. I left you with a proof that c = 1, and two additional equations to solve
-2 = 4a - 2b +1, and
2 = a + b + 1
(I had one of the equations wrong)
If you finish the problem, you should get
y = (-1/6)x^2 + (7/6)x +1

1. 👍
2. 👎
2. This does not help me at all. I am only in the beginning of Algebra 1. I have had nothing yet about parabola or the symbols you use. I just need a function rule for a graph!!!

1. 👍
2. 👎
3. where can find a site that helps with math

1. 👍
2. 👎

## Similar Questions

1. ### Algebra 2

the function f(x)=-5x. The graph of g(x) is f(x) vertically compressed by a factor of 1/4 and reflected in the x axis. What is the function rule for g(x)

2. ### Pre-Algebra

1. Given the function rule f(x) = x² – 3x + 2, what is the output of f(–2)? 2. Suppose you earn \$12 each time you mow the lawn. Write the function describes the relationship between your total earnings E and the number of

3. ### MATH help can anyone check my answer plzz!!

1)evaluate the function for x=2f(x)=7x-5 A)9 B)19 C)-9 D)-19 2)Candy is on sale for \$0.75 each you have a coupon for \$0.25 off your total purchase write a function rule for the coast on n pieces of candy. A)C(n)=0.25n-0.75

4. ### math

A taxi company charges passengers \$1.00 for a ride, and an additional \$0.30 for each mile traveled. The function rule C = 0.30m + 1.00 describes the relationship between the number of miles m and the total cost of the ride c. If

1. ### Math

Explain how to write a function rule from the table below. Then write a function rule. x 2 4 6 y 1 0 –1 I don't get these Please help.

Use the function rule to complete the table Table= x= -2, -1, 0, 1, 2 y= (figure out y) Function rule= -10x+y=4

3. ### Math Test

1. A rental car company charges \$150.00 for a weekly rental and an additional \$0.20 for each mile driven. The function rule C=0.20m+150.00 describes the relationship between the number of miles driven m and the total cost C. If

4. ### Algebra

Write a function rule to represent the sequence. 0.3, 0.9, 1.5, 2.1,... A(n) = 0.6 + (n - 1)0.3 A(n) = 0.6 - (n)0.3 A(n) = 0.3 + (n - 1)0.6 A(n) = 0.3 + (n + 1)0.6 Write a function rule to represent the sequence. 47, 32, 17, 2,...

1. ### math

12. Which function is a quadratic function? A. y=3x^2+x B. y=2x-1 C. y=3/x D. y= -|x| Which function rule represents the data in the table? x -3, -2, -1, 0, 1 y 1, -2, -5, -8, -11 A. y=-3x-8 B. y=1/3x -8 C. y=1/3x+8 D. y=3x+8

2. ### MATH

15. Write a function rule that represents y is 5 less than the product of 4 and x. 16. Write a function rule that represents 7 less than three fifths of b is a. 17. Write a function rule that represents the almond extract a

3. ### Algebra

Create a function rule for the following: x 0 3 6 f(x) -5 -3 -1 How do I create a function rule? I forgot how to and nowhere online is giving me a good example of how to.

4. ### Math ~ Check Answers ~

Explain how to write a function rule from the table below. Then write a function rule. X: 2 | 4| 6 | And: 1 | 0 | -1 | My Answer: y = -1/2 x But, -1/2 (2) = -1, and y(2) = 1, so we need to add 2 at the start. So, y = 2 - 1/2 x