Understanding General Equations of Lines

What is the general form of a line equation as discussed in the introduction?

• y = mx + b

• Ax + By + C = 0

• x = Ay + B

• Ax + By = C

How is the slope of line A determined?

• By counting the number of squares it rises and runs

• By finding the y-intercept

• By using the formula y = mx + b

• By measuring the angle with the x-axis

What is the y-intercept of line A?

• 3

• -8

• 24

• 0

What is the slope of line B?

• 1/2

• -2

• -1/2

• 2

How is the y-intercept of line B expressed in fractional form?

• 5/2

• 3

• 9/2

• 4.5

What is the general equation for line B after converting to standard form?

• 2x + y = 9

• x + 2y - 9 = 0

• x - 2y = 9

• 2x + y - 9 = 0

What is the equation of line C?

• y = 2

• y = -2

• x = -2

• x = 2

How is the equation of line C expressed in standard form?

• x - 2 = 0

• x + 2 = 0

• y + 2 = 0

• y - 2 = 0

What is the equation of line D?

• y = 7

• x = 7

• y = -7

• x = -7

How is the equation of line D expressed in standard form?

• y - 7 = 0

• x - 7 = 0

• y + 7 = 0

• x + 7 = 0