Which relation is not a function?
A. (1, 2) (1, 3) (1, 4) (1, 5) (1, 6)
B. (−2, 5) (0, 5) (3, 5) (4, 5) (6, 5)
C. (2, 1) (4, 2) (6, 3) (8, 4) (10, 4)
D. (0, 4) (2, 6) (4, 8) (6, 10) (8, 12)
A
What is the degree and classification of
-2x^2+5x-3
Quadratic Trinomial
What is the axis of symmetry?
f(x)=-2x^2+12x-18
x=-b/2a
3
Where are the solutions found on the graph of a quadratic?
X intercepts
What age group would be best to advertise for?
20-29
What is the domain of this function:
(−4, 1), (2, 0), (0, −3), (5, 2)
{−4, 2, 0, 5}
Find the sum
(m-6m^2-4)+(3+m^2+5m)
-5m^2+6m-1
Find the vertex
f(x)=-2(x+4)^2-5
(-4,-5)
Solve
(x-5)(x-4)=0
x=5 and x=4
List the data you can get from a box and whisker plot
1. Min/Max
2. Q1
3. Median
4. Q3
5.IQR
If f(x)=3x+7 what is f(-4)
-5
(x^2-3x+2)-(6x^2+2+x)
Find the difference
-5x^2-4x+0
Describe the transformations for
g(x)= 1/3(x+2)^2-6
Opens up, its Wider, Left 2, Down 6
Solve: 4x^2-4x+1=0
x = 1/2
A data set includes these values representing the number of minutes students spend on homework each night:
18, 22, 25, 19, 31, 40, 35, 27, 25, 29
What is the mean number of minutes spent on homework?
27.1
If f(x)=3x+7 what is x when f(x)=25
6
Find the product
(5x-1)(x-6)
5x^2-30x-1
Function for a ball thrown at 40 ft/sec from 8 feet
h(t)=-16t^2+40t+8
Use the quadratic equation to solve:
5x^2-3x-2=0
x=1.25 and x=-0.4
The ages of people who visited a math museum last week were:
12, 13, 14, 16, 18, 20, 21, 24, 26, 28, 30, 35, 38
What is the median age, and how many people were younger than the median?
Median = 21, 6 people
Write a linear function rule from this table:
x: −2, 0, 2, 4
f(x): 4, 6, 8, 10
y=x+6
Factor
27x^4-18x^3+9x^2
9x^2(3x^2-2x+1)
How many solutions does this problem have? (Hint: discriminant)
5x^2-2x+3=0
No solutions!!
Complete the square:
x^2+6x=10
x=3+sqrt(19)
and
x=3-sqrt(19)
How many goals were scored in the season? How many games did the team score more than 4 goals?