Posted by **Anonymous** on Saturday, February 16, 2013 at 1:06pm.

Axis symmetry x=3 passing thru (3,1) and (1,9)

Not sure how to solve

- college algebra -
**JJ**, Saturday, February 16, 2013 at 2:03pm
(3,1) is the vertex of the parabola.

(1,9) and (5,9)

y = ax^2 + bx + c

Substitue in the point (3,1)

1 = a(9) +b(3) +c

Do the same for (1,9) and then again for (5,9)

You will have 3 equations and 3 variables. Solve for a, b, c.

There is also a formula to find the equation using the vertex and 1 point. you should be able to find it in your textbook or using a google search.

## Answer this Question

## Related Questions

- college algebra - Axis of symmerty x=3 passing thru (3,1) and (1,9) What is the ...
- college algebra - Passing thru point (1,4); perpendicular to 2x+y=5 How do I ...
- college algebra - Write slope-intercept equation Passing thru the points (-6,-9...
- math help,algebra - Okay this is what i have to do but i think i am doing ...
- Algebra-Polynomails - Please explain to me orgin of symmetry, y-axis semmetry, ...
- Alegrba - Please check my answers. Also, can I see some graphs of y-axis ...
- Algebra - The formula is y=ax^2+bx+c I also gave the wrong problems, they are...
- Algebra - All parabolas are symmetric with respect to a line called the axis of ...
- Algebra - Find the axis of symmetry for y=x^2+4x-7 Find the axis of symmetry for...
- algebra 2 - What is the axis of symmetry for y=x^2-8x+8 equation ? Be sure to ...

More Related Questions