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Day 13
Geometry
Warm Up
1) Write the equation of the line through the points
(–1,3) and (5, –1) in point-slope form.
2) Graph the line –6x + 7y = –84 using the x– and the
y– intercepts.
Homework Check
Learning Objective
 G-GPE-5 - Prove the slope criteria for parallel and
perpendicular lines and use them to solve geometric
problems (e.g., find the equation of a line parallel or
perpendicular to a given line that passes through a
given point).
Note #15
What is the Pythagorean Theorem?
What is it used to find?
Note #15 (continued)
The Pythagorean Theorem
a2 + b2 = c2
Note #15 (continued)
Solving for x using the Pythagorean Theorem
Note #15 (continued)
Find the missing side
Note #15 (continued)
Formulating the distance formula
Note #15 (continued)
Distance Formula – Given the two points (x1,y1) and
(x2,y2), the distance between these points is given by the
formula:
Note #15 (continued)
Find the distance between the points
(–2, –3) and (–4,4)
Exit Slip
1) Find the value of x
2) Find the distance between the points
Homework: Page 46 #2-8 All, 14, 43