Slope and Y-Intercept in an Equation

Find the slope and y - intercept

y = -1 + 3x

• slope: 3 y-intercept: -1

• slope: -1 y-intercept: 3

• slope: 3x y-intercept: 1

• slope: -1 y-intercept: 3x

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

What is the slope of the equation?

y = -2x - 1

• 2

• -2

• -2x

• -1

Tags

CCSS.8.EE.B.5

What is the y-intercept in the equation

y= -2x

• -2

• -2x

• 0

• 1

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

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 y-intercept of the line y=4x-6?

• 6

• 4

• 4x

• −6

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Claire, Zack, and Cristian are on a mission to find a hidden time capsule. They found a note with a hint that says 'Follow the path y=-4x-5'. They know that the time capsule is buried at the y-intercept of this path. Can you help them find the time capsule? What is the y-intercept in this equation?

• -4

• -4x

• 5

• -5

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Write the equation of a line with a slope of -3 and y intercept of 8

• x = 8

• y = -3

• y = 8x -3

• y = -3x + 8

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Mathematical Equivalence

ON

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

How many solutions?

• 1 Solution

• 2 Solutions

• No solutions

• Infinite solutions

Tags

CCSS.8.EE.C.8A

Why will this system have infinite solutions?

• The equations are both negative.

• The equations are the same.

• They have the same y-intercept but not the same slope.

• They have the same slope but not the same y-intercept.

Tags

CCSS.8.EE.C.8B