Tuesday

July 29, 2014

July 29, 2014

Posted by **priya** on Friday, October 22, 2010 at 3:40pm.

a quadratic funtion has these characteristics

axis of symmetry: -1

x=3 is the x- int

y= 32 is the maximum value

determine the y int of this parabola.

- Grade 11 Math -
**Reiny**, Friday, October 22, 2010 at 4:46pmyour information of "axis of symmetry : -1 " is ambiguous.

the axis of symmetry is a line, so it should be stated as an equation x = -1

I will assume that is what you meant.

vertex is (-1,32)

so the equation is

y = a(x+1)^2 + 32

but the x-intercept is 3, meaning the point (3,0) lies on it

0 = a(3+1)^2 + 32

a = -32/16 = -1/2

y = (-1/2)(x+1)^2 + 32

**Related Questions**

ALGEBRA - Find the vertex, the line of symmetry, the maximum or minimum value of...

math help,algebra - Okay this is what i have to do but i think i am doing ...

math - Algebraically analyze the graph of the function f(x)= -6x^2+5x+2 . Find ...

Algebra2 - Complete parts a – c for each quadratic function: a. Find the y-...

Algebra 2 - 3. Identify the vertex and the axis of symmetry of the graph of the ...

Algebra - Find the vertex, the line of symmetry, the maximum or minimum of the ...

URGENT ALGEBRA 2 - identify the vertex and the axis of symmetry of the graph for...

algebra - Help me find the axis of symmetry of the given funtion. Y=x2-2x+4

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

algebra(reiny) - Hey thanks for all your help but you kinda confused me on a few...