Midterm Review

Front

What is the equation that represents the relationship between the number of months (x) and total membership (y) if a fitness club starts with 80 members and increases by 15 members each month?

Back

y = 15x + 80

Front

Arrange the following numbers from least to greatest: -3/7, -0.44, √2, 0.14, 141%.

Back

-0.44, -3/7, 0.14, 141%, √2

Front

If Taylor can write 6 words per minute, 25 words per minute, 50 words per minute, or 150 words per minute, which is the best explanation of Taylor's writing speed?

Back

Taylor can write 25 words per minute.

Front

Identify which graph is non-proportional: A, B, C, D.

Back

D

Front

Which set of ordered pairs represents a function? {(9,5), (10,5), (9,-5), (10,-5)}, {(3,4), (4,-3), (7,4), (3, 8)}, {(6,-5), (7, -3), (8, -1), (9, 1)}, {(2, -2), (5, 9), (5, -7), (1, 4)}.

Back

{(6,-5), (7, -3), (8, -1), (9, 1)}

Front

What is a function in mathematics?

Back

A relation where each input has exactly one output.

Front

Define proportional relationships.

Back

Relationships where two quantities maintain a constant ratio.

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

How do you determine if a graph represents a proportional relationship?

Back

Check if it passes through the origin (0,0) and has a constant slope.

Front

What is the difference between a function and a non-function?

Back

A function has one output for each input; a non-function can have multiple outputs for one input.