Question

Tickets to a band concert cost $10 each. The equation y = 10x represents total cost, y, of x tickets. Which graph shows ordered pairs represented by this equation?

Answer 1

the 3rd Option

Explanation:

i did this 6 years ago

Answer 2

the right-hand graph of the first diagram represents ordered pairs which are satisfied by the equation.

The correct graph is attached below.

Explanation:

Given the function equation

• y = 10x

Given that the cost of each ticket is $10.

It means:

at x = 0, y = 10(0) = 0 ∵ cost of 0 ticket

at x = 1, y = 10(1) = 10 ∵ cost of 1 ticket

at x = 2, y = 10(2) = 20 ∵ cost of 2 tickets

at x = 3, y = 10(3) = 30 ∵ cost of 3 tickets

at x = 4, y = 10(4) = 40 ∵ cost of 4 tickets

at x = 5, y = 10(5) = 50 ∵ cost of 5 tickets

Now, observe the ordered pairs points on the right-hand graph of the first diagram.

This graph has the following ordered pairs:

• (0, 0) i.e. at x = 0, y = 10(0) = 0

• (1, 10) i.e. at x = 1, y = 10(1) = 10

• (2, 20) i.e. at x = 2, y = 10(2) = 20

• (3, 30) i.e. at x = 3, y = 10(3) = 30

• (4, 40) i.e. at x = 4, y = 10(4) = 40

• (5, 50) i.e. at x = 5, y = 10(5) = 50

Thus, the right-hand graph of the first diagram represents ordered pairs which are satisfied by the equation.

The correct graph is attached below.