Parts of Quadratics
how do you find the axis of symmetry?
What is the x-value of the vertex
Identify the x-intercept(s) to the following function:
f(x) = x2+8x+16
What is (-4,0)
This tells you the parabola opens up or down.
What is whether a is positive or negative?
Give two other words for x-intercepts
What is roots, zeros, or solutions
Identify the x-intercept(s) to the following function:
f(x) = x2-121
What is (11,0) and (-11,0)
Name four ways you can solve a quadratic
What is square root method, factoring, complete the square, quadratic formula
what type of roots does a quadratic have if the parabola does not cross the x-axis?
What is two imaginary roots
Solve the following quadratic equation:
-16 = x2-8x
What is x=4
What is A in this equation? x2+15x-7
What is 1
What is the range of y=(x-1)2-3
What is [-3, infinity)
(Or y>= -3)
The vertex of y=a(x-h)2+k is this.
What is (h,k) where h is opposite?
Put the following equations in order from widest to narrowest;
I: f(x) = 3x2-8
II: f(x) = (2/9)x2-6
III: f(x) = (8/3)x2-12
IV: f(x) = 7x2-17
What is II, III, I, IV
What is B in this equation? 7x2+76
What is 0
Equation for quadratic's parent function?
What is y=x2
The vertex falls here in relation to the x-intercepts.
What is halfway between the two points.
What is the y-intercept of y=-2x2+6x-3
What is (0,-3)
A vertical line that runs through the vertex is called..
What is Axis of Symmetry
The domain of a quadratic function is this.
What is all real numbers?
(Or (-infinity, infinity))
The formula to find the x-value of the vertex in standard form ax2+bx+c is this.
What is x = -b/2a