Quadratic Graphs and their Properties
The standard form of a quadratic function is ________.
What is y=ax2 + bx + c ?
What are three methods used to solve quadratic equations?
What is: square root method, factoring, quadratic equation, or graphing?
What is the quadratic formula?
What is
x=(-b+-sqrt(b^2-4ac))/(2a)
What is
sqrt-1?
What is i ?
The quadratic function y=5x2+10x-2 has a y-intercept of...
What is -2 ?
Find the axis of symmetry for the quadratic function x2 + 10x + 6 = 0
What is x = -5?
Solve the equation m2 + 7 = 88
What is x = 9, -9
The equation 2x2 + 75 = 75 has how many solutions?
What is 1 real solution?
Add:
(5i+2) + (4-3i)
What is
6 + 2i?
Order the following quadratic functions in order from narrowest to widest:
A. y=4x2
B. y=12x2
C. y=11x2
D. y=2x2
What is B, C, A, D?
If the axis of symmetry of a quadratic function is x=2 and the quadratic function is x2 - 9a +18 = 0 what are the coordinates of the vertex?
What is (2,4)?
Solve the equation 7n2 + 68 = -380
What is x = 8i, -8i?
Solve the equation x2 - 13x + 30 = 0
What is x = 3, x = 10
Subtract:
(2-i) - (3+2i)
What is
-1-3i?
Order the quadratic functions from widest to narrowest.
A. y=4x2
B. y=2/3x^2
C. y=2x2
D. y=2/5x^2
What is D, B, C, A?
Find the coordinates of the vertex for the quadratic function
y=2(x-3)^2-5
What is (3,-5)?
What is the discriminant of the equation x2 + 15x + 30 = -6 and how many solutions does the equation have?
What is d = 81, and it has 2 real solutions?
Factor x2 + 12x + 35.
What is (x+5)(x+7)?
Multiply:
(3+7i)(2+4i)
What is
-22+26i?
Create a table to represent the graph y = 5x2 from x=-2 to x=2.
What is (-2,20) (-1,5) (0,0) (1,5) (2,20)?
Juan threw a baseball and it's height h after t seconds is modeled by the function h = -16t2 + 76t. When does the baseball reach its maximum height, and what is the height?
What is time it takes to reach
maximum height: 2.25 seconds
maximum height: 90 ft
Solve the equation 3x2 - 12x - 15 = 0 using the quadratic formula.
What is x = 5, -1 ?
Solve the following quadratic equation by factoring 20x2 - 13x + 2 = 0
What is
x=2/5
x=1/4
Multiply (2+5i) by the complex conjugate.
What is
(2+5i)(2-5i)=29?