Slope Intercept Form and Linear Equations

• y= -1x-3
• y= -3x-1
• y=(-1/3)x-1
• y= -3x-3

Parallel Lines never intersect because...

• they have the same slopes. 

• they have the same y-intercept.

• they have different slopes.

• they have different y-intercepts. 

This system has _____ solutions

• 0

• 1

• 2

• Infinitely many

What are the steps for graphing a line?

• Plot y-intercept
  count slope ratio plot second point
  Draw the line.

• Make a table
  Plot slope
  Draw line

• Plot two points
  Check slope
  Draw line

• Draw line
  Hope it is right

Lesly graphed two lines in order to find the solution to a given system of equations.
What is the solution?

• (-3,-8)

• (-8,-3)

• (3,-8)

• (8,3)

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

What is the slope of the equation?

• 2

• -2

• -2x

• -1

What is the y-intercept in the equation

y= -2x

• -2

• -2x

• 0

• 1

How many solutions?

• One Solution

• No solution

• Infinitely Many Solutions

What is the number of solutions to the system of equations?

• No Solution

• Infinitely Many Solutions

• One Solution

• Two Solutions