Writing Linear Equations from Graphs

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

• Intercept

• Slope

• Variable

• Constant

How do you identify the slope from a graph?

• The slope is the rise over run, or the change in y divided by the change in x.

• The slope is the distance between two points on the graph.

• The slope is the angle formed by the line with the x-axis.

• The slope is the total area under the curve of the graph.

What is the general form of a linear equation?

• y = mx + b

• y = ax^2 + bx + c

• y = m + b

• y = mx^2 + b

What is the slope in the equation y = 2x + 3?

• 1

• 2

• 3

• 4

Write the equation of the line with a slope of -1/3 and a y-intercept of -2.

• y = -1/3x - 2

• y = 1/3x - 2

• y = -1/3x + 2

• y = 3x - 2

What does a negative slope indicate about a line?

• The line rises from left to right.

• The line falls from left to right.

• The line is horizontal.

• The line is vertical.

What is the equation of the line represented by the graph with a slope of -2 and a y-intercept of 4?

• y = -2x + 4

• y = 2x + 4

• y = -2x - 4

• y = 2x - 4

What is the slope of the line represented by the equation y = 1/3x - 2?

• 1/2

• 1/3

• 2/3

• 3/1

If a line passes through the points (1, 2) and (3, 6), what is the slope of the line?

• 1

• 2

• 3

• 4

What does 'b' represent in the slope-intercept form y = mx + b?

• y-intercept

• slope

• x-intercept

• constant term