What's the point? Writing linear equations

Vocabulary

100

What do you call it when you rearrange an equation so the variable is on one side of the equal sign and the numbers are on the other side?

Isolating a variable

200

In data analysis, what do you call the whole group you want to learn about?

Population

300

What do you call data that uses numbers you can measure or count?

Quantitative Data

400

What do you call using chance to choose people or groups so the results are more fair?

Randomization

500

What do you call sampling that splits the population into groups, then randomly picks some from each group?

Stratified Sampling

Order of Operations

100

What does each letter in PEMDAS stand for?

Parentheses, Exponent, Multiplication, Division, Addition, Subtraction

200

2^2+1-5

0

300

(5xx2)-6/3-1

7

400

3(12-2xx3)-6

12

500

15-(2^3-12)+1

20

Isolating Variables

100

Solve for x

x+12=15

x=3

200

Solve for z

3z+9=18

z=3

300

isolate for y. 2x-y=24

y=-24+2x

400

isolate for t

3(t-1)+4 + y =19

t= 6-1/3 y

500

Solve for g

-3(g+1)+4^2=-5

g=6

Surprise!

100

 I have keys but no locks. I have space but no room. You can enter but you can’t leave. What am I?

keyboard

200

Where does today come before yesterday?

the dictionary

300

What food is America mostly known for?

hamburger/cheeseburger 

400

solve for r

3(r+3)-1=5

r=-1

500

What are the three forms you can write linear equations in?

1. Standard form

2. Y-intercept form

3. point slope form

Point slope form

100

write the following in point slope form

m= 3 (6,4)

y-4=3(x-6)

200

slope = -2/3

(-8, -4)

y+4=-2/3(x+8)

300

Write in point slope form  

(20, 100) and (5, 325)

y-100=-15(x-20) or 

y-325=-15(x-5)

400

Write the following in point slope form. 

(2,-6) and (80,-6)

y+6=0(x-80)

0r

y+6= 0(x-2)

500

write the following in point slope form

(7,10) (7,-30)

undefined slope 

x= 7