Final Exam Review #2

Front

What is the rate of change represented by a graph with a slope of 2?

Back

$2 per pound

Front

How do you find the slope of a line given two points?

Back

Slope (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 a slope of 0 indicate about a line?

Back

The line is horizontal.

Front

What is the equation representing the total cost of a holiday meal for x people, given a cost of $12.50 per person and a $30 delivery fee?

Back

y = 30 + 12.50x

Front

What does the slope of a line represent in a real-world context?

Back

The rate of change between two variables.

Front

How can you determine if a line is vertical?

Back

A vertical line has an undefined slope.

Front

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

Back

It represents the value of y when x = 0.

Front

If a line has a slope of -3/2, what does this indicate about the relationship between x and y?

Back

As x increases, y decreases.

Front

What is the formula to calculate the slope between two points (x1, y1) and (x2, y2)?

Back

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