Final answer:
The equation 2x + 1.5y = 18 represents the number of book raffle tickets and food raffle tickets bought at a club event. The situation can be represented in a table and coordinate plane, and it represents a function.
Step-by-step explanation:
To represent the situation in a table, we can choose different values for x and calculate the corresponding values for y using the equation. For example, if we take x = 2, then 2(2) + 1.5y = 18 gives us 4 + 1.5y = 18. Solving this equation, we find y = 8. We can continue this process for other values of x and create a table showing the values of x and y.
To represent the situation in a coordinate plane, we can choose a range of values for x and calculate the corresponding values for y using the equation. We can then plot the points (x, y) on the coordinate plane and connect them to see the relationship between x and y.
The situation does represent a function because for each value of x, there is exactly one corresponding value of y. In other words, each x-value is associated with a unique y-value, and there are no repeated x-values.
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