A.) 3.2 pounds package has a shipping cost of $4.13. We can't use the cost assigned to 3 lbs because the package is over 3 lbs but it is not over 4 lbs so we use the cost of 4lbs.
b) It is better to use a line graph where x values represent the weight in pounds and the y values represent the cost.
c) f(x) = 2.69 + 0.48(x-1)
d) domain is the x values; range is the y values
For sake of convenience, mark one column in increasing order,then mark both the values on their corresponding axes (as shown in the pic.)
After examining the Scatter Plot, we can say that there is a correlation between two variables like, they are proportional to each other and shows linear function.
Answer:15.36
Step-by-step explanation:
Took the test
Last one i believe is the answer
Answer:
5
Step-by-step explanation:
(f+g)(2) means f(2)+g(2).
f(2) means to evaluate the expression called f at x=2.
So f is x+1 and it wants us to plug in 2 for x.
x+1 with x=2
2+1
3
This means f(2)=3, f(2) has value 3.
g(2) means to evaluate the expression called g at x=2.
So g is x^2-x and it wants us to plug in 2 for x.
x^2-x with x=2
2^2-2
4-2
2
This means g(2)=2, g(2) has value 2.
Let's go back to (f+g)(2).
(f+g)(2)=f(2)+g(2)
(f+g)(2)= 3 + 2 (I replaced f(2) with 3 and g(2) with 2).
(f+g)(2)=5
