Chapter 4 reteach test questions followed by another example to practice after going through the test question.
Questions and Answers
Domain and range:
Questions 2 and 12
What is the domain of the function f(x)= 4x - 3 when the range is restricted to 1
Questions 3 and 17
The amount of money on Kyra makes is directly proportional to the amount of hours she works that week. Kyra works 23 hours this week she makes $189.75 before taxes are taken out. What is the equation for this situation?
From question 4, if Krya works a 40 hour work week how much is her take home pay before taxes are taken out?
Again using the situation in question 4, how many hours would she work if her pay was $156.75 before taxes?
Is it a linear function?
Questions 4 and 6.
Finding the x and y intercepts
questions 7 &14
What is the x intercept for the table of the linear function below.
Questions 11 & 16
Renting a canoe costs $10 plus $28 per day. The linear model for this situation relates the total cost of renting a canoe, y, with the number of days rented, x.
What is the y intercept?
In the situation in question 11 what does the slope mean?
Questions 13 & 19
How is the graph of y = 6x +13 different from the graph of the equation y= 2x +16. Explain the difference in the y intercept and the slope. (right the y intercept first.
Find the slope of the line
Questions 18 & 20
What is the slope of the line 4x + 5y = 30?