Question 1

Find the best-fit line associated with the set of points.

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 2

A table of values for a linear function is given. Find  .

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 3

Sketch the straight line with the equation.

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 4

A piano manufacture has a daily fixed cost of $1,100 and a marginal cost of $1,400 per piano. On a given day, what is the cost of manufacturing 3 pianos?

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 5

The linear function is given. Find  .

Accepted Answer

The answer of The linear function is given. Find ...

Question 6

Given  , find

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 7

In the Fahrenheit temperature scale, water freezes at 32 F and boils at 212 F. In the Celsius (or centigrade)scale, water freezes at 0 C and boils at 100 C. Assuming that the Fahrenheit temperature  and the Celsius temperature  are related by a linear equation, find the Fahrenheit temperature that corresponds to 71 C, to the nearest degree. __________ F

Accepted Answer

The answer of In the Fahrenheit temperature scale, water freezes...

Question 8

Choose the graph of the function  from the following:

Accepted Answer

A)   
B)   
C)   
D)

Question 9

Find the linear equation that is the straight line through (25, -4.3)and increasing at a rate of 5 units of  per unit of  .

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 10

Choose the graph of the function  from the following:

Accepted Answer

A)   
B)   
C)   
D)

Question 11

Find the linear equation for the straight line through (4, 5)with slope 5. Please enter your answer as an equation in the form  .

Accepted Answer

The answer of Find the linear equation for the straight...

Question 12

In the Fahrenheit temperature scale, water freezes at 32 F and boils at 212 F. In the Celsius (or centigrade)scale, water freezes at 0 C and boils at 100 C. Assuming that the Fahrenheit temperature  and the Celsius temperature  are related by a linear equation, find the Celsius temperature that correspond to 175 F, to the nearest degree. __________ C

Accepted Answer

The answer of In the Fahrenheit temperature scale, water freezes...

Question 13

Use correlation coefficients to determine which of the given sets of data is worst fit by its associated regression line.
a. 
b. 
c.

Accepted Answer

A) c 
B) b 
C) b and c 
D) a 
E) a and b

Question 14

Find the linear equation that is the straight line through (28, -4.4)and increasing at a rate of 10 units of  per unit of  . Please enter your answer as an equation in the form  .

Accepted Answer

The answer of Find the linear equation that is the...

Question 15

Use the graph of the function f to find  .

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 16

The linear function is given. Find  .

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 17

Choose the graph of the function  from the following:

Accepted Answer

A)   
B)   
C)   
D)

Question 18

Function f is  . Find  .

Accepted Answer

A)   
B)   
C)   
D)   
E)

Question 19

Estimate the slope of the line segment.  Please enter your answer as a fraction.

Accepted Answer

The answer of Estimate the slope of the line segment....

Question 20

Find the linear equation that is the straight line through (3, 4)and (9, 40).

Accepted Answer

A)   
B)   
C)   
D)   
E)

Exam 1: Functions and Linear Models

Find the best-fit line associated with the set of points.

A table of values for a linear function is given. Find .

Sketch the straight line with the equation.

A piano manufacture has a daily fixed cost of $1,100 and a marginal cost of $1,400 per piano. On a given day, what is the cost of manufacturing 3 pianos?

The linear function is given. Find .

Given , find

Choose the graph of the function from the following:

Find the linear equation that is the straight line through (25, -4.3) and increasing at a rate of 5 units of per unit of .

Choose the graph of the function from the following:

Find the linear equation for the straight line through (4, 5)with slope 5. Please enter your answer as an equation in the form .

Use correlation coefficients to determine which of the given sets of data is worst fit by its associated regression line. a. b. c.

Find the linear equation that is the straight line through (28, -4.4)and increasing at a rate of 10 units of per unit of . Please enter your answer as an equation in the form .

Use the graph of the function f to find .

The linear function is given. Find .

Choose the graph of the function from the following:

Function f is . Find .

Estimate the slope of the line segment. $Estimate the slope of the line segment. Please enter your answer as a fraction.$ Please enter your answer as a fraction.

Find the linear equation that is the straight line through (3, 4) and (9, 40) .