Saturday

September 20, 2014

September 20, 2014

Posted by **DANIELLE** on Tuesday, April 24, 2007 at 1:34pm.

(a)how many x-intercepts the parabola has

(b)whether it vertex lies above, below or on the axis.

1. y=x^2-5x+6

I use the determinant

sqrt b^2 -4ac

(-5)^2-4(1)(6))=1

There are two real numbers

The parabola has two X- intercepets

The parabola opens downward and its vertex lies above the axis.

2.Y=-X^2+2X-1

(2)^2-4(-1)(-1)=0

There is one real number

one x-intercept

The parabola opens upward and its vertex lies on the axis.

Thanks Much!!!

119

**Answer this Question**

**Related Questions**

ALGEBRA 1 - Please check for me.Without drawing the graph of the given equation ...

algebra - Which of the following best describe the graph of a quadratic equation...

algebra - y=2x^2+5x-3 a)determine the x-intercepts b)determine the vertex c)...

Algebra,Math, graphs help - This is what the directions state to do: (A) ...

Algebra 2 - Point (-6,-2) lies on a parabola that has its vertex at (0,1). Write...

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

Algebra - Find the vertex of the functions given below. 1. y=(x-4)(x+2) 2. y=2x^...

algebra II - Can you please help me with the these problems. 8.Write an equation...

math - A parabola has the equation y = 4(x-3)^2-7 Choose 2 true statements: A) ...

algebra - Can someone check my answers please and if Im wrong please explain. 1...