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Simplifying
Solving
Interval Notation
Function or Nah?
Correct or incorrect?
100
3r+3s-2r
r+3s
100
2x+3=21
x=9
100
0≥x>4
[0,4)
100
(2,3),(4,3), (5,8),(2,3)
Yes, it is a function.
100
-4>x≥8 (-4,8) Is this function notation correct?
Its is incorrect (-4,8]
200
-3x+5y-4x+6y
11y-7x
200
10x+4=28+2x
x=3
200
Graph the possible solutions on a number line: [0,7)
Closed circle at 0 Open circle at 7
200
(-5,4), (-6,-2), (-5,-4), (-4,2)
Not a function
200
3(2x-6)=3x+12 Answer:x=10
X=10 is correct
300
-3(x+7)+5x+8
2x-13
300
9x+8=-3(-2x+10)
x=-11
300
-∞<x<-5
(-∞,-5)
300
Draw an example of a graph that is not a function.
Does not pass VLT
300
2n+8(10+n)-50 Answer: n=10
This is incorrect. This was an expression so it should not have an =. Answer: 10n+30
400
8(2x+4k)-3k(8-3)
16x+17k
400
2x(8-4)=12(x+2)-16
x=-2
400
Write the inequality for (8,∞)
x>8
400
Draw the graph of a function.
Passes VLT
400
Shelly simplified the expression 2(3x+4x+1)+3(3) and got an answer of 16x+9. What did Shelly do wrong?
Shelly combined terms that were not alike. She added 3x+4x+1
500
-8(2x+y)+5(3+2y)-2(3x+6)
-22x+2y+3
500
4(-8+x)+2=6(x+4)-4x
x=27
500
Create the number line for: [5,8)
Closed circle at 5 Open circle at 8
500
Image 5
Not a Function
500
What is the mistake: John solved the following expression: 2x+3x-2-7(2+x) and got an answer of 4x-16.
You Simplify an expression not solve it. John's math is correct.