Use Quadratic Formula 1
y= x^2+5x+6
-2 and -3
y=.2x^2x+4
-1/2
49x^2-16=-7
3/7 or -3/7
What is the name of the shape a quadratic makes?
parabola
Does a positive parabola open up or down?
Up
Graph in your calculator to see how many solutions does 9x^2-24x+16 have?
One
3x^2-9x+5
1.5
2x^2 - 3x - 8
(3 +/- root 73) / 4
What is the point called where your parabola crosses the y-axis?
y-intercept
How many sides does a star have?
10
Graph in your calculator to see how many solutions does this equation have: 2x^2-12=11x
Two.
y=2x^2-6x
1.5
x^2 - 4x - 9
2 +/- root 13
If the x-intercepts of a graph are x=2 and x=–3, what are the factors.
(x–2)(x+3)
What is the name of the maximum/minimum point?
y= x^2+2x-15
3 or -5
y=3x^2-9
0
-3x^2 + x + 3
(-1 +/- root 37) / -6
What are 2 of the 3 other names for x-intercepts?
roots, solutions, zeros.
Which of these letters have an axis of symmetry: F, G, H, J?
H
f(x)=d^2-d-6
3, -2
y=2x^2+4x-5
-1
2x^2+2x+6
(-1 +/- root 10) / -2
Explain the buttons you press in the graphing calculator to find the vertex:
1. 2nd Trace
2. Min or Max
3. Left Bound/Right Bound/Enter
How many bones are in your body?
206