Monday

September 22, 2014

September 22, 2014

Posted by **Bluesky** on Thursday, May 17, 2012 at 7:34pm.

x intercept- 4?

y intercept- -5?

vertex-? I don't know how to find the vertex.

axis of symmetry?

- Math does anyone know this? -
**Reiny**, Thursday, May 17, 2012 at 8:13pmfor y-intercept , let x = 0

so y = 0+0-5 = -5

y-intercept is -5

for x-intercept , let y = 0

x^2 + 4x - 5 = 0

(x+5)(x-1) = 0

x = -5 or x = 1

the x-intercepts are -5 and 1

for vertex , complete the square

y = x^2 + 4x + 4 - 4- 5

= (x+2)^2 - 9

vertex is (-2,-9)

axis of symmetry: x = -2

**Answer this Question**

**Related Questions**

Algebra - All parabolas are symmetric with respect to a line called the axis of ...

geometery - 1.given the function y=x^2-4x+5,find the following: a.vertex b....

Maths - Given the quadratic function y =3x^2+10x-8 (i)Find the y-intercept. (ii)...

Algebra - Identify the vertex and the axis of symmetry for the graph of y=5(x-2...

algebra 2 - what is the y-intercept, the x-coordinate of the vertex and the ...

Troy - Can someone check my answers for the following problems. Simplify. Assume...

algebra - 1)Find the exact solutions to 3x^2=5x-1 using the quadratic formula. ...

maths - how do i find out the the equation of the line of symmetry for f(x)=ax^2...

Algebra2.... - 1.) Y=-lx+1l+3 Are these correct? y-intercept=(0,2) x-intercept=(...

algebra - I would like to have some help on this problem please. I'm so post to ...