Solving Systems Of Equations by Substitution
y=x+2 and x+y=8
What is 3,5
What type of correlation is shown when points go upward from left to right?
What is Positive Correlation
Write 5,000 in scientific notation
What is 5x103
What makes a relation a function
Each input has exactly one output
x=2y
and
x+y=12
What is 8,4
What type of correlation is shown when points go downward from left to right?
What is Negative Correlation
Write 3.2 x 104 in standard form
What is 32,000
Is the relation below a function
(1,2),(2,4),(3,6),(4,8)
Yes,because each input has only one output
y=3x—1
and
x+y=15
What is 4,11
What does it mean if a scatter plot has no clear pattern?
What is No Correlation
Which number is larger: 4.5 x 106 or 4.5 x 105
4.5 x 105
Find the output when f(r)=2r+3 and r=4
f(4)=2(4)+3=11
x=y+5
and
2x+y=20
What is 5,0
A scatter plot shows that as study time increases, test scores also increase. What type of correlation is this?
Positive Correlation
Write 0.00072 in scientific notation
7.2 x 10-4
Does this table represent a function
x y:5,7,9
2
2
2
3
No,because the input 2 has two different outputs
y=2x+3
and
3x-y=7
What is 4,11
A scatter plot shows that as the temperature outside decreases, hot chocolate sales increase. What type of correlation is this?
Negative Correlation
Multiply and write in scientific notation:(2 x 103)
(4 x 105)
8 x 108
A function is defined as f(r)=r2-4r+1 find f(5)
f(5)=25–20+1=6