5.2-5.4 Slope Intercept Review (Math)

Front

What is another name for y-intercept?

Back

initial value

Front

In the equation y=0.75x+2.25, what does the y-intercept represent?

Back

You will have to pay $2.25 before you travel any miles.

Front

In the equation y=0.75x+2.25, what does the slope represent?

Back

The cost of the trip will increase by $0.75 per mile.

Front

What does the term 'slope' refer to in a linear equation?

Back

The rate of change of the dependent variable (y) with respect to the independent variable (x).

Front

If a cab charges a flat rate of $2.25 and $0.75 per mile, what is the total cost for 5 miles?

Back

$5.50 (calculated as 2.25 + 0.75*5).

Front

What is the formula for slope in a linear equation?

Back

Slope (m) = (change in y) / (change in x).

Front

What does a positive slope indicate about a linear relationship?

Back

As x increases, y also increases.

Front

What does a negative slope indicate about a linear relationship?

Back

As x increases, y decreases.

Front

How do you find the y-intercept from a linear equation in slope-intercept form?

Back

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

Front

What is the slope of the line represented by the equation y=3x+4?

Back

3 (the coefficient of x).