Introduction to Slopes and Intercepts

State the y-intercept of the line y = 3x + 2

• 3

• -3

• 2

• -2

State the slope of the red line.

• Positive

• Negative

• Zero

• Undefined

What is the slope in the picture?

• Positive

• Negative

• Zero

• Undefined

What is the slope in the picture?

• Positive

• Negative

• Zero

• Undefined

What is the equation of a line when m = -3 and b = 5?

• y = -3x + 5

• y = -3x - 5

• y = 5x + 3

• y = -5x - 3

Find the slope and y - intercept

• slope: 3 y-intercept: -1

• slope: -1 y-intercept: 3

• slope: 3x y-intercept: 1

• slope: -1 y-intercept: 3x

Find the slope of the line.

Hint: rise/run

• 1/2

• -1/2

• 2

• 0

Why will these graphs never cross?

• They have the same y-intercept.

• They have the same slope.

• They are both lines.

• They are both positive slopes.

What is the slope of the equation?

y = -2x - 1

• 2

• -2

• -2x

• -1

What is the y-intercept in the equation

y= -2x

• -2

• -2x

• 0

• 1