Topic 2B Review

Front

What is the equation that represents the total amount of money Jerry has after working x hours if he starts with $20 and earns $7 per hour?

Back

y = 7x + 20

Front

How do you write a function that represents the number of bricks (y) laid in x rows if each row has 20 bricks?

Back

y = 20x

Front

If a plumber charges $50 for a house call and $25 per hour for labor, how much would it cost for 2.5 hours of labor?

Back

$112.50

Front

What type of slope does a line have if it decreases from left to right?

Back

Negative

Front

What is the slope-intercept form of the equation for a line with a slope of 4 and a y-intercept of 3?

Back

y = 4x + 3

Front

Define slope in the context of a linear equation.

Back

Slope is the measure of the steepness of a line, calculated as the change in y over the change in x.

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, representing the value of y when x = 0.

Front

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

Back

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