Writing Equations Practice

Front

What is the equation to determine the total cost, c, of a phone call that is m minutes long if the company charges $3.00 plus $0.15 for each minute?

Back

c = 3.00 + 0.15m

Front

What is the equation of a line with a slope of 3 and a y-intercept of 5?

Back

y = 3x + 5

Front

What is the equation representing the cost of a large pizza at $15 plus $1.50 for each topping?

Back

y = 15 + 1.5x

Front

What is the equation of the line represented by the graph with a slope of -2 and a y-intercept of 4?

Back

y = -2x + 4

Front

What does the y-intercept represent in a graph?

Back

The y-intercept is the point where the graph crosses the y-axis.

Front

If a line has a slope of 0, what does that indicate about the line?

Back

A slope of 0 indicates a horizontal line.

Front

What is the slope-intercept form of a linear equation?

Back

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

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

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

Front

What is the meaning of the slope in a linear equation?

Back

The slope represents the rate of change of y with respect to x.

Front

What is the equation of a line that passes through the point (0, 10) and has a slope of -1?

Back

y = -1x + 10.