UNIT 2 Makeup FLASHCARDIZZ

Front

What is the total cost for 2.5 hours of labor if a plumber charges $50 for a house call and $25 per hour for labor?

Back

$112.50

Front

What is a linear graph?

Back

A linear graph represents a linear relationship between two variables, typically shown as a straight line.

Front

What is the equation of a line with a slope of -1 and a y-intercept of 0?

Back

y = -1x + 0

Front

How do you write the equation of a line with a slope of 2/3 and a y-intercept of -3?

Back

y = 2/3x - 3

Front

In the equation y = mx + b, what does 'b' represent?

Back

The y-intercept.

Front

What is the slope in the equation y = 2x + 5?

Back

2

Front

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

Back

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

Front

What does it mean if a graph has a positive slope?

Back

It means that as the x-value increases, the y-value also increases.

Front

What is the formula for calculating the y-intercept from a linear equation?

Back

Set x = 0 in the equation and solve for y.

Front

What is the difference between the x-intercept and the y-intercept?

Back

The x-intercept is where the graph crosses the x-axis (y=0), while the y-intercept is where it crosses the y-axis (x=0).