Classify the following polynomial based upon degree and number of terms:
3x2 - 5x
Quadratic Binomial
or
2nd Degree Binomial
How has the following parabola been shifted?
y = (x - 7)2
Right 7 units
What are the 3 ways to solve a system of equations?
Graphing
Substitution
Elimination
What are the 3 ways to describe shape?
Symmetric
Skewed Left
Skewed Right
Find the slope between the two points:
(4, 5) and (10, 6)
1/6
Simplify the following
4x2(5x3 + 6x2 - 10)
20x5 + 24x4 - 40x2
Write the equation of a parabola that has been:
1. Vertically stretched
2. Reflected across the x-axis
3. Moved down 10 units
y = -2x2 - 10
Solve the following system:
-7x - 2y = -13
x = 2y + 11
(3, -4)
When data is symmetric, you should use WHICH measure of center?
Mean or Median
Would this be represented by a linear, exponential, or quadratic relationship?
Exponential
Simplify the following:
(6w3 - 7w + 10) - (-7w3 + 4w2 + 8w - 10)
13w3 - 4w2 - 15w + 20
What is the vertex of the parabola?
f(x) = 3(x + 5)2 + 9
(-5, 9)
If two lines are parallel, then they have _________________ solution.
No solution.
When data is skewed, you should use which measure of spread?
IQR
-2x + 8 - 10x + 9 = 3(5x -3) - 7
x = - 11
Classify the following based upon degree and number of terms:
6
Constant Monomial
Use factoring to SOLVE the following quadratic equations.
x2 - 12x -45
x = 15
x = -3
Mrs. G and Mr. A went to the concession stand. Mrs. G ordered 2 slices of pizza and 1 soda for a total of $7. Mr. A ordered 1 slice of pizza and 2 sodas for a total of $6.50.
Write a system of equations to model this situation. DO NOT SOLVE.
2p + s = 7
p + 2s = 6.50
A data point that is far outside the norm is called an ___________.
Outlier
What "test" determines if a relation is a function?
Vertical Line Test (VLT)
Simplify the following
(x - 8)2
x2 - 16x + 64
Diego hits a baseball. The height (h) of the baseball in feet (t) seconds is given by the function:
h(t) = -16t2 + 30t + 6
How many seconds will the ball be in the air?
2.06 seconds
Solve the following system:
5x + y = 9
10x - 7y = - 18
(1, 4)
Just because two variables are strong __________________, does not mean they have a _______________ relationship.
1. correlated/related
2. Casual
How are perpendicular lines related?