write the equation of the line through (3,7) and (-2, -4)

Write the equation of the line through (3,7) and (-2, -4).

Find Inverse:

If f◦g = g◦f = x, then f and g are inverses.

Are they inverses?

Are they Inverses?

Writing the Equation of a Line

Parallel & PerpendicularVertical & Horizontal

Write the Equation of the line through the points (-1, 4) and (0, 6)

Write the Equation of the line through the points (3, 4) and (6, 5)

Graph & Compare:

What generalization can you make?

Let’s graph 2 perpendicular lines – what do you notice about their slopes?

So

Parallel Lines have the same slopePerpendicular lines have opposite reciprocal slopes

What’s the slope of the line parallel to the line

What’s the slope of the line perpendicular to the line

Write the equation of the line that contains the point (2, 4) and is

parallel to

Write the equation of the line that contains the point (-3, 1) and is perpendicular to

Write the equation of the line that contains the point (-2, -6) and is parallel to

Write the equation of the line that contains the point (-6, 5) and is perpendicular to