Posted by **cindy** on Sunday, March 7, 2010 at 8:21pm.

find the vertex and graph of y=.3x2+1.8x-2

- college math -
**Damon**, Sunday, March 7, 2010 at 8:31pm
y = 0.3 x^2 + 1.8 x - 2 ???

.3 x^2 + 1.8 x = y+2

x^2 + 6 x = (10/3)y + 20/3

x^2 + 6 x + 9 = (10/3) [y + 2/3 + 2.7/3]

(x+3)^2 = (10/3) [ y + 4.7 ]

(-3, -4.7) vertex

axis of symmetry is x = -3

upright, holds water

## Answer this Question

## Related Questions

- Algebra2 - Complete parts a – c for each quadratic function. a. Find the y-...
- ITT - use the eight step strategy to graph f(x)=-3x2-12x-5 find the vertex find ...
- Algebra II - Does the graph of y = x – 3x2 + 5 have a maximum or minimum? What ...
- math - Complete the square to find the vertex of each quadratic function. State ...
- algebra - Can someone please explain What polynomial has a graph that passes ...
- College Math - Find the vertex and axis of symmetry of the graph of a function. ...
- Algebra - Identify the vertex and the axis of symmetry for the graph of y=5(x-2...
- College Algebra - 1.Answer the following for the given quadratic function. f(x...
- heelp math - A graph is constructed iteratively according to the following ...
- Algebra II repost- please check - I posted these a little while ago but this ...