Name:



Name: _________________________________ Date: ____________ Hr: _____

Chapter 1 Quiz: Linear Equations

The following graph represents the relationship between the weight someone can lift and the time spent in training:

[pic]

(a) Write a sentence describing the relationship between weight and time.

_______________________________________________________________

(b) What is the value and units of your slope? Show work.

(c) What is the meaning of your slope?

(d) What is the value and unit of your y-intercept?

(e) What is the meaning of the y-intercept?

(f) Write the equation of the line using real variables and making sure your numbers have units.

(g) Use your equation to calculate how much weight this person could lift if they spent 10 months training. Show your work.

Name: _________________________________ Date: ____________ Hr: _____

Chapter 1 Quiz: Linear Equations

The following graph represents the relationship between the weight of a baby and its age:

[pic]

(a) Write a sentence describing the relationship between weight and age.

_______________________________________________________________

(b) What is the value and units of your slope? Show work.

(c) What is the meaning of your slope?

(d) What is the value and unit of your y-intercept?

(e) What is the meaning of the y-intercept?

(f) Write the equation of the line using real variables and making sure your numbers have units.

(g) Use your equation to calculate how much the baby will weigh at an age of 15 months. Show your work.

Name: _________________________________ Date: ____________ Hr: _____

Chapter 1 Quiz: Linear Equations

The following graph represents the relationship between the height of a building and the number of floors it has:

[pic]

(a) Write a sentence describing the relationship between height and number of floors.

_______________________________________________________________

(b) What is the value and units of your slope? Show work.

(c) What is the meaning of your slope?

(d) What is the value and unit of your y-intercept?

(e) What is the meaning of the y-intercept?

(f) Write the equation of the line using real variables and making sure your numbers have units.

(g) Use your equation to calculate the height of a building with 20 floors. Show your work.

Name: _________________________________ Date: ____________ Hr: _____

Chapter 1 Quiz: Linear Equations

The graph below shows the relationship between scores on the SAT exam and the number of years students study science.

[pic]

(a) Write a sentence describing the relationship between SAT score and number of science classes.

_______________________________________________________________

(b) What is the value and units of your slope? Show work.

(c) What is the meaning of your slope?

(d) What is the value and unit of your y-intercept?

(e) What is the meaning of the y-intercept?

(f) Write the equation of the line using real variables and making sure your numbers have units.

(g) Use your equation to calculate the SAT score of a person who takes 7 science classes. Show your work.

Name: _________________________________ Date: ____________ Hr: _____

Chapter 1 Quiz: Linear Equations

The following data shows the cost for membership in a CD purchasing club, depending on how many CDs are purchased.

[pic]

(a) Write a sentence describing the relationship between Cost and number of compact discs.

_______________________________________________________________

(b) What is the value and units of your slope? Show work.

(c) What is the meaning of your slope?

(d) What is the value and unit of your y-intercept?

(e) What is the meaning of the y-intercept?

(f) Write the equation of the line using real variables and making sure your numbers have units.

(g) Use your equation to calculate the cost of buying 15 compact discs. Show your work.

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