Multiple Representations

Front

What is the equation for a situation where the total cost (y) is $19.25 per item (x)?

Back

y = 19.25x

Front

What is the term for the point where a line crosses the y-axis?

Back

y-intercept

Front

What inequality represents a number line that includes 3 and all numbers greater than 3?

Back

x >= 3

Front

If Jim paid a gym membership fee of $50 plus $20 per month and has paid a total of $290, what equation represents this situation?

Back

50 + 20m = 290

Front

What is the rate of change (m) if the change in y is 9 and the change in x is 1?

Back

m = 9

Front

What is the definition of slope in a linear equation?

Back

The slope (m) is the rate of change of y with respect to x.

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept is the value of y when x = 0.

Front

How do you find the slope from two points (x1, y1) and (x2, y2)?

Back

m = (y2 - y1) / (x2 - x1)

Front

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

Back

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

Front

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

Back

It means that as x increases, y also increases.