Skill 3: Graphing Linear Equations

What is an x-intercept?

• Where the line crosses the x-axis.

• Where the line crosses the y-axis.

• The "m" in the equation y = mx + b

• Green apples are delicious.

How do you find the x-intercept? (more than one answer)

• Find where the line crosses the x-axis

• Find where the line crosses the y-axis

• Make y = 0 and solve for x.

• Make x = 0 and solve for y.

^{What is the x- intercept of the line?}

• (1, 0)

• (2, 0)

• (-1, 0)

• (-2, 0)

Given the list of ordered pairs, what is the x-intercept?
(8,10),  (3, -4),  (0, 8), (4, -3), (9, 0)

• (8,10)
• 8, 3, 0, 4, 9
• (0,8)
• (9,0)

Give the x-interecept
3x + y = 5

• -3
• (0,5)
• -5
• (5/3, 0)

What is the x-intercept of the equation?

-x + 5y = 45

• (45, 0)

• (-1, 0)

• (-45, 0)

• None of these.

What is a y-intercept?

• Where the line crosses the y-axis.

• Where the line crosses the x-axis.

• Always the origin.

• How you move when graphing a line.

How do you find the y-intercept? (More than one answer).

• Plug in "0" for y and solve for x.

• Plug in "0" for x and solve for y.

• Find where the line crosses the y-axis.

• It is the "b" in the equation y = mx + b.

Determine the y-intercept for the following equation

4x + 2y = -12

• (0, 4)

• (0, -6)

• (0, -12)

• (0, 2)

What is the y-intercept of the equation?

3x + 6y = 24

• (3, 0)

• (0, 6)

• (8, 0)

• (0, 4)