Unit 6
Unit 7
Unit 8
Unit 9
Algebra 1B (200)
Algebra 1A (200)
100
Name 2 solutions for following graph:
Consider answers.
100
Combine all like terms
4x^3+6x-9x^2+10-3x^2-3+2x-2x^2-2x-x^2
4x^3-16x^2+6x+7
Answer must be in standard form!!!
100
What is the y-intercept (coordinate, not the number) for the following equation?
y=-2x^2+8x-6
(0, -6)
100
I buy the new iPhone 20 at $1000, and the next year it's worth $500, and then the next year it's worth $250, and then the next year it's worth $125 and so on. Find the growth/decay rate (multiplier) for the phone's value each year.
Exponential Decay - 50% or .50 or 1/2
100
Graph
5x-3y<=9
Consider answers
100
What is the difference between an equation and an expression?
An expression does not have an equal sign, while an equation does.
200
Solve the expression.
4(2x-5)>4
Extra 50 points if you can name 1 solution.
x > 3
solutions are values that greater than 3.
200
Write an example of each of the following:
- cubic monomial
- quadratic binomial
- sextic polynomial
- quartic trinomial
Consider answers.
200
What is the vertex for
y=x^2-2x-9
The vertex is (1,-10)
200
Give the exponential equation for the following situation: Ms. Kelly brought 5 chocolate chip cookies this week and triples the amount she brings every week.
y=5(3)^x
200
Show that (x+2)(x+3) and
x^2+5x+6
are connected through multiplication and factoring.
Must show that they can undo multiplication by factoring or vice versa. Can be done by showing work for each.
200
What is the first step to solving this equation?
4(x - 4) + 9 = 10
Either subtract 9 or distribute the 4
300
Draw a rough sketch of the linear equation:
y>2x+1
Extra 50 points if you can name 1 solution.
Graph should have a line with positive slope going through (0,1). The line should be dashed/dotted and shaded above.
300
Multiply the following expressions:
(7x-8)(6x-9)
42x^2-111x+72
300
Label which coordinate is the vertex, y-intercept, and x-intercepts for this parabola.
Vertex - (2,9)
y-intercept - (0,5)
x-intercepts - (-1,0) and (5,0)
300
Give your own situation for the following exponential equation:
y= 10(2)^x
Something that starts with 10 and shows growth by multiplying by 2 or doubling
300
Find the x-intercepts/roots for the quadratic equation: y=x^2+16
No solutions.
300
Is (3, 2) a solution for y = 2x -4
Yes, you can graph it to check or plug in the numbers.
400
Graph the following:
2x + 3y <-12
Extra 100 points if you can name 2 solutions.
y < -2/3x + 4
shade below
dotted
400
Factor
x^2-49x+48
(x-48)(x-1)
400
Find the roots/x-intercepts for
y=x^2-3x-18
(-3,0) and (6,0)
400
There are 147 students currently enrolled at OFY- Northridge. Every year, the enrollment number increases by 1.2%. At this pace, how many students will be enrolled at OFY-Northridge 4 years from now?
147(1.012)^4 = 154.18 or 155 students
400
What is the difference between exponential and linear growth/decay?
Exponential growth/decay is a constant ratio of multiplication, while linear growth/decay is a constant "slope" of addition/subtraction.
400
What are the 3 methods used to solve a system of equations?
Graphing, Substitution, and Elimination.
500
Is (-2,7) a solution for 3x +2y <8 ?
No, you can graph or plug and check to find out it is not a solution.
500
Multiply the following expression: (3x^2+2x-9)(4x-2)
12x^3+2x^2-40x+18
500
Complete the following table for the function
y=3x^2-6x+8
(-3. ?), (-1, ?), (0, 8) y-int, (1, 5) vertex, (2, ?), (3, ?), (5, ?)
(-3, 44)
(-1, 17)
(0, 8) y-int
(1, 5) vertex
(2, 8)
(3, 17)
(5, 44)
500
Write an exponential equation for the following table: 
y=4(3)^x
500
What do you remember most about this semester of Algebra 1B?
Consider Answers
500
Take a second to think how much math you knew before this class, either from last year or last semester. How much do you think you've learned? Why do you think it is, or isn't, important?
Consider answers.