A15 - Slope 2

Front

What is a ratio?

Back

A comparison of two quantities using division, e.g., 3 to 7.

Front

What is a proportion?

Back

When two ratios are equivalent and show the same value.

Front

How do you find the slope of a line?

Back

Slope is calculated as the change in y divided by the change in x (rise/run).

Front

If a hamburger sells for 3 pounds for $6, how much will 10 pounds cost?

Back

$20.

Front

What does it mean for two ratios to form a proportion?

Back

It means the two ratios are equivalent.

Front

What is a unit rate?

Back

A comparison of two quantities where the second quantity is 1, e.g., 60 miles per hour.

Front

How do you express a slope of 4/5?

Back

It means for every 4 units you move up, you move 5 units to the right.

Front

What is the formula for slope?

Back

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

Front

What is a complex fraction?

Back

A fraction where the numerator, the denominator, or both contain fractions.

Front

If the ratio of boys to girls in a class is 2:3, what is the proportion of boys?

Back

The proportion of boys is 2/(2+3) = 2/5.