Slopes

FormulasFormulas

• Slope= rise/run• Change of y/change of x

Lattice Point

• When finding the slope from an origin you can use the lattice point.

Triangle

• The triangle method is another method used to find the slope.

Question: Extra Credit!!

Question: Extra Credit!!

Question: Extra Credit!!

Example

First Way

• You can find the slope in Three Ways that we learned.

• 1st way: Rise/run• Count the rise• Yes, it is 2• Count the run• Yes, it is -8• We have 2/-8 when reduced it is -1/4

Second Way: Lattice Point

• We see that the line crosses at (4,-2) and (-6,-2).

• Remember: We can use the lattice points when the line does not cross the origin.

Third Way: Triangle

• Use the two lattice points you have.

• Connect them by forming a triangle.

Challenge:

• Is this a positive slope or a negative slope?Why?

Challenge:

• What is the slope?