2nd 9 Weeks 8th grade Review

Front

Back

-5

Front

What is the constant proportionality of 624 calories in 3 servings?

Back

208 calories per serving

Front

Back

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

Front

Back

The y-intercept is (0, 4).

Front

Which equation represents a direct variation between the amount of water (x) and the yield (y)?

Back

y = 4x (The yield is four times the amount of water).

Front

Define slope in the context of a linear equation.

Back

Slope is the ratio of the rise (change in y) to the run (change in x) between two points on a line.

Front

What does a positive slope indicate about a linear relationship?

Back

A positive slope indicates that as x increases, y also increases.

Front

What does a negative slope indicate about a linear relationship?

Back

A negative slope indicates that as x increases, y decreases.

Front

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

Back

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

Front

Back

The slope is 3.