Comparing Functions in the Real World Answers

The cost of a service call to fix a washing machine can be expressed by the linear function , where y represents the total cost and x represents the number of hours it takes to fix the machine. What does the y-intercept represent?

In the table below, x represents the miles traveled and y represents the cost to travel by train. Miles, xCost, y28.50515.25822.001231.00What is the slope of this function?

The graph shows the amount of water that remains in a barrel after it begins to leak. The variable x represents the number of days that have passed since the barrel was filled, and y represents the number of gallons of water that remain in the barrel. What does the y-intercept represent?

The table represents the total miles traveled, y, after a number of hours, x.Hours, xMiles, y2.51504.02405.53307.0420Which linear equation represents the situation?

Lila wrote an equation of the cost for printing brochures, where x represents the number of brochures and y represents the total cost. The total cost for 35 brochures is $41.45. The total cost for 65 brochures is $55.55. Step 1: Write the ordered pairs and .Step 2: Find the slope. Step 3: Find the y-intercept to write the equation in slope intercept form. Which explains the error that Lila made?

The graph shows the number of hours that Tammy spends typing for work, x, and the amount of pay that she earns, y.What does the y-intercept represent?

In the table below, x represents miles traveled and y represents the cost to travel by train. Miles, xCost, y28.50515.25822.001231.00What is the y-intercept of this function?

The value of a collectible coin can be represented by the equation , where x represents its age in years and y represents its total value in dollars. What is the value of the coin after 19 years?

The graph shows the number of hours that Tammy spends typing for work, x, and the amount of pay that she earns, y.What is the slope of the line?

A florist shop represents its first month’s sales with the equation , where x represents the number of days that the shop is open and y represents the sales in dollars. The owner of the shop would like to calculate the number of days it took to reach $3,200 in sales. Which would be used to solve the problem?