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Week 3 Practice (2C, 2I, 3B, 3C, 3D, 5C)
Quiz by Lainey Travis
Track each student's skills and progress in your Mastery dashboards
​A savings account balance can be modeled by the graph of the linear function shown on the grid. What is the rate of change of the balance with respect to the number of deposits?
$0.50 per deposit
$50 per deposit
$2 per deposit
$100 per deposit
A customer pays an annual membership fee of $85 to a neighborhood car wash. Each time he takes his car to the car wash, he pays only $7. The total amount of money he spends at the car wash in one year in dollars can be found using the function y = 7x + 85. What does the variable x represent in this function?
A savings account balance can be modeled by the graph of the linear function shown on the grid. What is the rate of change of the balance with respect to the number of deposits?
The table represents some points on the graph of a linear function. What is the rate of change of y with respect to x for this function?
The graph shows how the volume of a gas sample changes as the temperature changes and the pressure remains constant. Which of these best represents the rate of change in the volume of the gas sample with respect to the temperature?
The graph models the linear relationship between the temperature of Earth’s atmosphere and the altitude above sea level. Which of these best represents the rate of change of the temperature with respect to altitude?
The function y = 3.75 + 1.5(x - 1) can be used to determine the cost in dollars for a taxi ride of x miles. What is the rate of change of the cost in dollars with respect to the number of miles?
The graph shows the linear relationship between the maximum area in square feet that can be painted and the number of gallons of paint used. Which of these best represents the rate of change of the maximum area painted with respect to the number of gallons of paint used?
The table shows the linear relationship between the balance of a student's savings account and the number of weeks he has been saving. Based on the table, what was the rate of change of the balance of the student's savings account in dollars and cents per week? Record your answer and fill in the bubbles on your answer document.
What is the y-intercept of the line graphed on the grid?
Which graph represents -3x + 5y = - 15?
Which graph shows a line with an x-intercept of -5?
A lifeguard earns $320 per week for working 40 hours plus $12 per hour worked over 40 hours. A lifeguard can work a maximum of 60 hours per week. Which graph best represents the lifeguard’s weekly earnings in dollars for working h hours over 40?
The graph of a function is shown on the grid. Which ordered pair best represents the location of the y-intercept?
The graph of linear function g is shown on the grid. What is the zero of g?
The water level of a river was measured each day during a two-week period. The graph models the linear relationship between the water level of the river in feet and the number of days the water level was measured. Which statement best describes the y-intercept of the graph?
The table represents some points on the graph of a linear function. Which function represents the same relationship?
An organization has a monthly budget of x dollars. Every month 2,070 dollars is spent on salaries. One-fourth of the remaining budget is spent on monthly activities. Which function can be used to find the amount in dollars spent on monthly activities?
Researchers in Antarctica discovered a warm sea current under a glacier that is causing the glacier to melt. The ice shelf of the glacier had a thickness of approximately 450 m when it was first discovered. The thickness of the ice shelf is decreasing at an average rate of 0.06 m per day. Which function can be used to find the thickness of the ice shelf in meters x days since the discovery?
The table represents some points on the graph of a linear function. Which equation represents the same relationship?
The graph of a linear function is shown on the grid. Which equation is best represented by this graph?
