Math 7 Weekly Flashcardizz #18 2024-25

Front

What does it mean for a table to be proportional?

Back

A table is proportional if the ratio between the two quantities is constant, meaning the unit rate does not change.

Front

What is a unit rate?

Back

A unit rate is a ratio that compares a quantity to one unit of another quantity, often expressed as 'per' something.

Front

How do you determine if a table is proportional?

Back

To determine if a table is proportional, check if the ratios of the quantities are constant and if the table passes through the origin.

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the rise (change in y) over the run (change in x).

Front

What is the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the slope from two points?

Back

To find the slope from two points (x1, y1) and (x2, y2), use the formula: slope = (y2 - y1) / (x2 - x1).

Front

What does the variable 'p' represent in the equation p = 20w?

Back

In the equation p = 20w, 'p' represents the price, and 'w' represents the weight.

Front

What does the equation y = 18x represent in a real-world context?

Back

The equation y = 18x represents a situation where you earn $18 for every hour worked, with 'y' being the total earnings and 'x' being the number of hours.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, representing the value of y when x is 0.

Front

What does it mean if a line has a negative slope?

Back

A line with a negative slope indicates that as one variable increases, the other variable decreases.