Answer:
The percent increase is
%
Step-by-step explanation:
First we need to calculate the increase:
Increase in value = 
=
Percent increase = [Increase in value / Initial value]*100
=
=
%
Therefore,
the percent increase is
%
Answer: C. a prediction based on the data is reliable, because the means of the samples are close together.
Step-by-step explanation:
Just substitute 5 into a and -2 into k
Answer:
Step-by-step explanation:
1. You just plot the points
2. To plot the line you have to find the slope and y-intercept
Slope =
=
= 
Slope = 
Y-intercept = 
Y-intercept: y - 15 =
(x - 2)
y - 15 =
+ 15
Add 15 to both sides
y =
x + 30 this is the equation of the line.
So you start with the starting point and then the slope!