3.1 warm-up 8th

What is the slope in the equation:  y=4x+3

• 3
• 4x
• 4
• x

Write the y-intercept for the line.

y-intercept is where the line cross the y-axis

• (0,3)

• (3,0)

• (-2,0)

• (2,0)

How do you calculate slope using a graph?

• rise over run
• run over rise
• look at the y intercept
• look at the x intercept

Find the slope when given (2, 3) (3, 5)

• 1/2
• 2
• -2
• 4

Which line has a positive slope?

• pink
• green
• blue
• neither