RTI Slope/Equation of a Line

RTI Slope/Equation of a Line

Do you remember the 2 rules?

31 - (-17) =

-63 - (-79) =

-39 + 47 =

-29 + -87 =

75 - (-83) =

87 - (-36) =

What are these formulas used for?

• y = mx + b

• m = y1 - y over x1 - x2

Which one is slope?

• y

• mx

• m

• b

EXIT TICKET

• ISOLATE THE "Y' (remember the formula)

• 3y = 4x =

• 2x + 5y=

• what is the slope for each? What is the y-intercept for each?