Graphing Inequalities
Solve for y.
2x-3y>12
The answer is y<2/3x-4.
k(7k+9)
What is this solved?
This is (7k2+9k).
y=-2
4x-3y=18
What is the solution for x and y?
The solution is (3,-2).
What is type of sequence is this and the common difference or ratio for this?What is the a1?
40,43,46,49,52...
Type:Arithmetic
The common difference is 3.
a1:40
What does continuous and range mean?
Continuous:It's some graphs that are connected by lines or curves.
Range:The y-values of ordered pairs.
What signs mean to shade below and if the line is solid?
Shade below:≤ or <.
Solid line:≥ or ≤.
Which one is this factored for 5p2-p-18?
A) (5p-9)(p+2) B) 4(3p+3)(p-6)
C) (5p+9)(p-2) D) (2p-3)(3p-6)
The answer is C.
-4x+y=6
-5x-y=21
What is the solution for x and y?
The solution is (-3,-6).
What is type of sequence is this and the common difference or ratio for this?What is the a1?
4, 13/3, 14/3, 5, 16/3...
Type:Arithmetic
The common difference is 1/3.
a1:4
What does function mean?
It's a relationship or function where each input(x) has a single output(y).
A linear inequality is similar to what?
It's similar to a linear equation.
y=mx+b
What is this factored?
2b2+17b+21
It is (2b+3)(b+7).
2x-3y=-1
y=x-1
What and why do you do with the y?
What:You substitute the 'x-1' in the y for -3y.
Why:Because since 'y' is equal to 'y' you can plug in the equation for '-3y' and the equation will still represent 'y'.
What is type of sequence is this and the common difference or ratio for this?What is the a1?
1,10,100,100,10000...
Type:Geometric
The common ratio:10
a1:1
What does VLT mean and what is it?
VLT:Stands for vertical line test.
Definition:It's checking if the line on a graph repeats an input(x) with a different output(Y).
Solve for y.
5/2 + 7y ≤ 4y - 7/2
The answer is y≥2.
Is 9r2-5r-10 factorable?
This is NOT factorable.
y=-3x+20
y=4x-15
What is the solution for x and y?
The solution is (5,5).
What is type of sequence is this and the common difference or ratio for this?What is the a1?
(2n)2
Type:Neither
The common difference:N/A
a1:N/A
Is this a function?Which numbers is a domain and range?
(-1,5) , (0,3) , (2,3) , (3,-1)
Function:Yes
Domain:-1,0,2,3
Range:5,3,-1
Which answer solves for y?
1/3(y+3)+ 1/2 >-9/2
A) 2y≥-18 B) 24<y C) y>-18 D) y≤24
The answer is C.
3b3-5b2+2b
What is this factored?
This is b(3b-2)(b-1).
-3x+3y=4
-x+y=3
What is the solution for x and y?
There is NO solution.
What is the formula for recursive and explicite?
Recursive formula:an=an-1*r
Explicite formula:an=a1*rn-1
What is the relations,domain,range,type of graph(discrete or continuous),and is it a function or not.
(I have the graph).
Relations:(1,1)(2,4)(3,2)(4,5)(5,6)(6,7).
Domain:(1,2,3,4,5,6)
Range:(1,4,2,5,6,7)
Type:Continuous
Function:Yes