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WorksheetsMath Day 3
Total questions: 16
Worksheet time: 35mins
Determine if the relations represent y as a function of x. Select the correct answer in each row.
The graph of a linear function passes through the points (─2, 4) and (4, ─5). Write the equation that best represents the function.
(a)
A water tank currently contains 275 gallons of water. The amount of water in the tank will decrease at a constant rate of 15 gallons per week. Which function can be used to find t, the total number of gallons of water in the tank after w weeks?
t = 15w ─ 275
t = ─15w + 275
t = 275w ─ 15
t = ─275w + 15
Function: A relation where each input, (a) has exactly (b) output, (c) ; x-values do not repeat; graph (d) the vertical line test ( (e) ).
The graph of a linear function is shown on the grid. What is the equation best represented by the graph?
(a)
The graph of a linear function is shown on the grid. What is the equation best represented by the graph?
(a)
The table represents some points on the graph of a linear function. Write the equation best represented by the table.
(a)
The table represents some points on the graph of a linear function. Write the equation best represented by the table.
(a)
Mackenzie was given 150 coins to start a coin collection. She will add 30 coins each month to her coin collection. Write a function that can be used to find c, the number of coins in her collection after saving for m months.
(a)
Darryl is draining a large tank. The tank starts with 1,200 gallons. Darryl drains 75 gallons from the tank each hour. Write an equation that can be used to find g, the gallons remaining in the tank, after h hours.
(a)
Does the set of ordered pairs below represent a function?
{(15 ,─12), (0, 0), (12, 2), (15, ─2), (─15, ─12)}
The set of ordered pairs (a) represent a function because (b)
Charlie opened a savings account. The graph models the linear relationship between the amount of money remaining in Charlie’s account and the number of weeks that have passed. Write the function that best represents the relationship.
(a)
The table shows the relationship between the amount of pet food in cups remaining in an automatic feeder and the number of meals the feeder has dispensed. What is the equation that best represents the relationship shown in the table?
(a)
Which sets of ordered pairs represent y as a function of x?
Mike buys bags of mulch to be delivered to his landscaping business each week. The bags of mulch cost the same amount and he is charged a flat rate for delivery. • Last week, he bought 35 bags of mulch and paid a total of $160.75. • This week, he bought 44 bags of mulch and paid a total of $199.00. Write an equation that can be used to find y, the total cost for x bags of mulch to be delivered.
(a)
Which representations show y as a function of x?
