8.5G and 8.5I Review

Front

What is the equation to find the total amount in Jay's savings account after x months if he saves $250 per month and has an initial amount of $5,000?

Back

y = 250x + 5000

Front

How can you determine if a table represents a function?

Back

The x-values do NOT repeat.

Front

What does it mean if a graph is classified as a FUNCTION?

Back

Each x-value has exactly one corresponding y-value.

Front

What is the equation to find the total amount paid by a choir director for x t-shirts if there is a one-time fee of $42 and each t-shirt costs $18?

Back

y = 18x + 42

Front

What equation represents the total amount of money Jessica made in sales when selling x stickers at $5 each?

Back

y = 5x

Front

What is a function in mathematical terms?

Back

A relation where each input (x-value) has exactly one output (y-value).

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

If a function has a slope of 2, what does this indicate about the relationship between x and y?

Back

For every increase of 1 in x, y increases by 2.

Front

What is the y-intercept in the equation y = 3x + 4?

Back

The y-intercept is 4.

Front

How do you find the total cost if a service has a fixed fee and a variable cost per unit?

Back

Total Cost = Fixed Fee + (Variable Cost per Unit * Number of Units).