Expressions and Equations | Slope | Systems of Linear equations | Functions | Random Questions |
---|---|---|---|---|
9n+4m-3
Combine the following like terms:
7n+4n-3-2n+m-5m |
y=2x
https://docs.google.com/presentation/d/11Zw_-T2H-f6bRAnLnWvh2CzlXB6KnCPLLfA6tQWaVCU/edit?usp=sharing
|
21.25=21.25
5x-25=-3x+49 +3x +3x 8x-25=49 +25 +25 8x=74 8 8 x=9.25
Solve for x and y
y=5x-25 y=-3x+49 |
No
Is this a Function?
((1,3),(7,3),(4,2),(1,2)) |
No
Is this a function?
((2,1),(2,2),(2,3),(2,4)) |
-10x-8=12
+10x +10x -8 =10x+12 -12 -12 -20 = 10x 10 10 -2=x
Solve the following equations:
-10x-8=12 |
y=-2x+3
https://docs.google.com/presentation/d/1TuXbtO0vDsOX2qLPdLKbScUfBry3o8EAqyx07UeaqO0/edit?usp=sharing
|
9=9
-x+5= 4x+25 +x +x 5=5x+25 -25 -25 -20=5x 5 5 -4=x
Solve for x and y
y=-x+5 y=4x+25 |
yes
https://docs.google.com/presentation/d/1KXa0ngppMBE6hjF227i2ZQCTHL_MjTh3GLakdYW7OGc/edit?usp=sharing
|
64
Substitution
3x+5x-2+3-x |
12b-7b+12=5b-3b+5
5b+12=2b+5 -2b -2b 3b+12=5 -12 -12 3b=-7 3 3 b=-7/3
Variables on both sides
12b-7b+12=5b-3b+5 |
y=3
https://docs.google.com/presentation/d/17nzapDGpArKyvHJKKkBREKxQ3Dm9xrSRz71YvUNwvw0/edit?usp=sharing
|
0=0
-4x-4=2x+2 +4x +4x -4=6x+2 -2 -2 -6=6x 6 6 -1=x
Solve for x and y
y=2x+2 y=-4x-4 |
yes
Is this a function?
((1,1),(2,2),(3,3),(4,4) |
-1=-1
-2x-3=3x+2 +2x +2x -3=5x+2 -2 -2 -5=5x 5 5 -1=x
solve for x and y
y=-2x-3=3x+2 |
4x+-7x² -7+4 if x is -2
4(-2)+-7(-2)²-7+4 -8+-28-3 -39
Substitution
4x+-7x² -7+4 if x is -2 |
x=2
https://docs.google.com/presentation/d/1V0-7wLhxBLbTZJ6UCz1A9lFOLqU0Uh7nJ5rig2uRKfo/edit?usp=sharing
|
-6.33..=-6.3..
-5x-3=-2x-5 +5x +5x -3=3x-5 +5x +5x ⅔=x
Solve for x and y
y=-5x-3 y=-2x-5 |
no
https://docs.google.com/presentation/d/1u7AmZQCCEXUv8wAxxs4v838sECDYLfXeI5aMx86EFZU/edit?usp=sharing
|
Yes
Is this a function?
((2,4),(3,4),(4,4),(5,4)) |
Answer: Fatima: y=7x
Khadija: y=7x+3 Khadija is going to win because she started farther into the race and they are going at the same pace
Equations word problems
Fatima and Khadija are racing. They are going at the same pace. They want to write an equation using that data. Fatima starts at the start when Khadija starts at 3mi, they are going at 7mph. What is each girl's equation? Who is going to win? |
y=-x+4
https://docs.google.com/presentation/d/1NOK4JOqwegBR0DPZSSHgEMQ0H4Lrf959w73Vv1s2b68/edit?usp=sharing
|
5x-3=3x-3
-3x=-3x 2x-3=-3 +3 +3 2x=0 2 2 x=0. y=-3
Solve for x and y
y=5x-3 y=3x-3 |
yes
Is this a function?
((7,1),(2,3),(4,3),(1,3)) |
14=14
-x-3=14 +3 +3 -x=17 x =-17
Solve for x
-x-3=14 |