Identifying Slope and Y-Intercept from Graphs and Tables

What is the y-intercept in a linear relationship?

• The point where the graph crosses the x-axis

• The point where the graph crosses the y-axis

• The slope of the line

• The highest point on the graph

How do you find the y-intercept from a table?

• Look for the row where the y-value is zero

• Look for the row where the x-value is zero

• Find the lowest x-value

• Find the highest y-value

What is the slope formula used for ordered pairs?

• (y2 - y1) / (x2 - x1)

• (x2 - x1) / (y2 - y1)

• (y1 - y2) / (x1 - x2)

• (x1 - x2) / (y1 - y2)

In the given graph, if the rise is 2 and the run is 1, what is the slope?

• -1

• 2

• -2

• 1

From the table, if x1 = -2, y1 = 12, x2 = -1, and y2 = 0, what is the slope?

• 1

• -1

• 12

• -12

If the y-intercept is where x is zero, what is the y-intercept in the table where x = 0 and y = -12?

• 12

• -12

• 0

• 1

In a graph where each line represents 15 units, if the rise is 15 and the run is 1, what is the slope?

• 1

• 45

• 15

• 30

For the ordered pairs (2, -9) and (4, -12), what is the slope?

• -3/2

• 2/3

• 3/2

• -2/3

In a graph, if the y-intercept is at -15, what does this mean?

• The slope is -15

• The graph crosses the x-axis at -15

• The graph crosses the y-axis at -15

• The highest point on the graph is -15

If the slope of a line is 40 and the y-intercept is 30, what is the equation of the line?

• y = 40x - 30

• y = 30x + 40

• y = 40x + 30

• y = 30x - 40