Identifying Slope and Y-Intercept from Linear Equations

What is the y-intercept of a graph?

• The point where the graph crosses the x-axis

• The lowest point on the graph

• The point where the graph crosses the y-axis

• The highest point on the graph

How is the y-intercept written as a point?

• (y, 0)

• (0, y)

• (y, x)

• (x, y)

In the example problem, what does the y-intercept represent?

• The time of day

• The temperature at sunrise

• The temperature at noon

• The temperature at sunset

How do you determine the slope from a graph?

• By counting the number of boxes vertically and horizontally

• By calculating the area under the graph

• By measuring the distance between two points

• By finding the midpoint of the graph

What does a slope of 4 represent in the example problem?

• A 4 degree decrease every day

• A 4 degree decrease every hour

• A 4 degree increase every hour

• A 4 degree increase every day

What is the general form of the slope-intercept equation?

• y = mx + b

• y = bx + m

• x = my + b

• x = by + m

In the slope-intercept form, what does 'm' represent?

• The coefficient of y

• The slope

• The x-intercept

• The y-intercept

In the slope-intercept form, what does 'b' represent?

• The slope

• The y-intercept

• The coefficient of x

• The x-intercept

What is the y-intercept of the equation y = 3/4x - 6?

• 3/4

• 0

• 6

• -6

What is the slope of the equation y = -x + 20?

• -20

• 20

• -1

• 1