Linear Equations
5x + 12 = 32
x = 4
(-1/5)
If f(x) = -2x + 3, what is the value of f(-4)?
f(-4) = 11
What is the solution to the system given the graph below?
[Graph D]
(2,3)
Factor the following:
4x2-8x
4x (x-2)
m - 8 = 10 - 5m
m = 3
What is the slope of the line?
[Graph A]
m=1
[Study Guide Problem #32, [part B]
10 degrees
What is the solution to the system given the graph below?
[Graph E]
No solution
Factor:
x2-x-20
(x-5)(x+4)
Solve for x:
6 + x + 5 = 3x + 1 - 2x
x = 0
Graph the equation 4x - 3y = 12
Check individual responses.
[Study Guide Problem #32, Part C]
2 hours
Solve the system:
y=50x+4
y=32x+40
(2, 104)
Find the zeros:
y=6x2+13x-5
(2x+5)(3x-1)
2(x-3) + 11 = 21
x = 8
What is the equation of the line?
[Graph B]
y = 2x + 4
The total cost c of a monthly cell phone plan can be expressed as a function in terms of the initial base plan plus the cost of text messages sent. If the initial cost of the plan is $30 and the cost per text message is $0.10, write the function of the total cost c of a cell phone plan in terms of the number of text messages m sent.
c = 30 + 0.10m
Solve the system:
5x-y=8
6x+y=14
Find the zeros:
x2+16
(x+4)(x+4)
Solve for x:
-(1/2)x + 3 = 1
x = 4
Write an equation for the line:
[Graph C]
y = (5/3)x - 2
The total cost c of a monthly cell phone plan can be expressed as a function in terms of the initial base plan plus the cost of text messages sent. If the initial cost of the plan is $30 and the cost per text message is $0.10, what would your bill be is you sent 100 messages?
$40
4x = 2y+2
3x+2y=12
y = x2+3x-18