Understanding Slope-Point Form and Line Equations

What is the first step in finding the slope-point form of a line?

• Calculate the y-intercept

• Find the midpoint of the line

• Choose any two points on the line

• Identify the slope and a point on the line

How is the slope calculated in the slope-point form?

• By subtracting the y-intercepts

• By adding the x and y coordinates

• By dividing the x-coordinates

• By using the rise over run method

In the second example, why is the slope considered negative?

• Because the line is vertical

• Because the line moves down and to the right

• Because the line moves up and to the left

• Because the line is horizontal

What is the equation of a vertical line?

• x = my + b

• x = a constant

• y = a constant

• y = mx + b

Why can't the slope-point form be used for horizontal lines?

• Because the slope is undefined

• Because the line is not straight

• Because the slope is zero

• Because the line has no y-intercept