Variable that relies on the other
Dependent Variable
x+2=4
x=2
2a+a+3
3a+3
Is this line of best fit accurate?
No
Find b:
b=80
The variable that falls on the x-axis
Independent Variable
4x+3=15
x= 3
3b-1+4x+3
3b+4x+2
Linear & Positive
What is the ratio for this table:
5
y=5x
y-intercept
3a=a+12
a=6
7b-2a+3b+6a+a
10b+5a
Negative, Linear, Weak
The taxi company changed their fees so that the taxi meter begins at $4 and adds an additional $2.50 per kilometer travelled. What is the equation for this situation?
y=2.5x+4
Another word for predicting
Extrapolating
Is this equation true?
4y+6x-2y+3x-5z = 10x+3z-4x+6y+2z
No: 2y+9x-5z = 6x+5z+6y
-2+4d+3+4a-d-3a
1+3d+a
No-correlation
If Jessica runs at a constant rate of 3 miles every 24 minutes, how long will it take her to run 5 miles?
40 minutes
When a graph shows a relationship between two variables, it shows a ____.
Correlation
10+12c=8c+13
c=3/4
5b-9c-4-10c+20c+14
5b+c+10
Nonlinear
y=mx+b
Find the slope from these points: (6,2) (14,8)
Slope: y2-y1/x2-x1
8/6 or 4/3