Sunday

November 23, 2014

November 23, 2014

Posted by **Emily** on Tuesday, January 30, 2007 at 11:04pm.

Complete each statement. Assume the variable a does not equal 0.

a. The graph of y=ax^2+c intersects the x-axis in two places when ______.

b. The graph of y=ax^2+c does not intersect the x-axis when ______.

------------------------------------------------------------

Plz somebody explain this to me. Any help is greatly appreciated!!!

This equation is a parabola. In order for it to intersect the x-axis in 2 places, the bottom point of the parabola has to be below the x-axis. Therefore, the point c, which is the minimum of the parabola (where x is 0) has to be less than 0. If c is >0, then it does not cross the x-axis, because the whole graph sits above the x-axis.

oh, i get it now!!! Thanx so so much! You guys help me out a lot!

- Exploring Quadratic Graphs -
**Kia**, Wednesday, February 9, 2011 at 9:23pmy=-4x^2

**Answer this Question**

**Related Questions**

algebra - The cost of producing a number of items x is given by C = mx + b, in ...

math - Graph the quadratic functions y = -2x^2 and y = -2x^2 + 4 on a separate ...

algebra - im totally lost with my homework this is all gibberish to me. What are...

science(HELP) - how do i make this graph? Graphs: Be able to correctly select ...

math - Graph the quadratic functions y = -2x2 and y = -2x2 + 4 on a separate ...

math - Graph the quadratic functions y = -2x2 and y = -2x2 + 4 on a separate ...

math - 19. Which statement describes the relationship between the line graphs of...

math, algebra,graphs help - THe directions state: (A)Complete the table, (B) ...

Math - which of the following graphs could represent a function with the ...

Quadratic Functions - Please explain to me how to do the following problems, I ...