Understanding Slope-Intercept Form

What is the y-intercept in a nonproportional linear relationship?

• The point where the line crosses the x-axis

• The point where the line crosses the y-axis

• The slope of the line

• The origin of the graph

Why do nonproportional linear relationships have a y-intercept?

• Because they are always horizontal

• Because they have a slope of zero

• Because they do not pass through the origin

• Because they pass through the origin

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

• The y-intercept

• The x-intercept

• The slope

• The constant term

How can you identify the slope in the equation y = -5x + 3?

• 5

• 0

• 3

• -5

What is the y-intercept in the equation y = 1/4x - 6?

• 6

• -6

• 0

• 1/4

How do you calculate the slope from two points on a graph?

• Add the x-coordinates and y-coordinates

• Multiply the x-coordinates and y-coordinates

• Subtract the y-coordinates and divide by the x-coordinates

• Subtract the x-coordinates and divide by the y-coordinates

What is the slope of a line that rises 5 units for every 3 units it runs?

• 5

• 5/3

• 3/5

• 1/5

In the context of a taxi fare, what does the y-intercept represent?

• The total fare

• The cost per mile

• The total distance traveled

• The base fare

If the slope of a taxi fare equation is 0.50, what does this represent?

• The cost per mile

• The distance traveled

• The total fare

• The base fare

What does a slope of 0.50 in a taxi fare equation indicate?

• The fare decreases by $0.50 for each mile traveled

• The fare increases by $0.50 for each mile traveled

• The fare is $0.50 for the first mile only

• The fare is constant at $0.50