MP2 - M8 - Classwork - Dec 4

Multiple Choice

What letter represents the slope in the equation y = mx + b ?

• x
• y
• m
• b

Multiple Choice

In the following equation, what is the y-intercept?  
y = -3x + 7

• -3
• 7
• -3/7
• 3

Multiple Choice

What is the slope in the equation:  y=4x+3

• 3
• 4x
• 4
• x

Multiple Choice

If m=3 and b=6, what is the correct slope intercept equation?

• y=3-6
• y=3x-6
• y=3x+6
• y=6x+3

Multiple Choice

Find the slope.

• 3/2
• -3/2
• (-0,-3)
• none of the above

Multiple Choice

What type of slope does the following graph have?

• Postive
• Negative
• Zero Slope
• Undefined

Multiple Choice

What type of slope does the graph have?

• Zero
• Undefined
• Negative
• Positive

Multiple Choice

Which is the graph of y= -x + 2?

• A
• B
• C
• D

Multiple Choice

Which equation represents the following graph?

• y = 3x + 2
• y = -2x + 3
• y = 2x + 3
• y = -3x + 2

Multiple Choice

Find the slope of the line.

• 3/2
• 2/3
• -3/2
• -2/3

Graphing Linear Equations

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Linear Graph

An equation whose graph is a line is a linear equation. You can plot points on a coordinate plane to graph a linear equation.

Example: y = -4x + 4.

X and Y Intercepts

Linear equations have x and y-intercepts. The x-intercept is the x-coordinate of the point at which the graph crosses the x-axis. The y-intercept is the y-coordinate of the point at which the graph crosses the y-axis. 

Multiple Choice

What is the x-intercept of the graph?

• (5,0)

• (0,5)

• (0,4)

• (4,0)

Multiple Choice

What is the x-intercept?

• (-2,0)

• (0-6)

• (0,-2)

• (-6,0)

Multiple Choice

What is the y-intercept?

• (0,15)

• (3,0)

• (15,0)

• (0,3)

Multiple Choice

What is the y-intercept?

• (2,0)

• (0,2)

• (0,-2)

• (-2,0)

Graphing an Equation

You need only 2 points to graph a line. You can choose a value for x, and then evaluate for y.

Make a Table of Values or T-Chart

Choose a value for x, plug in, and solve for y. Do this 2 or 3 times. Then, use the points to graph your equation.

Build a t-chart

Graph

Plot each ordered pair. Connect with a line.