{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

MA220Lesson9Notes

MA220Lesson9Notes - MA 22000 Lesson 9 notes Section 1.3(2nd...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
MA 22000, Lesson 9 notes Section 1.3 (2 nd half of book), pg. 24 Slope: Definition: The slope of a line is the ratio of the ‘change’ in y to the ‘change’ in x . 1 1 2 2 2 1 2 1 1 2 Given 2 points of a line, ( , ) and ( , ) change in slope = change in (where ) x y x y y y rise y y m x x run x x x x Ex 1: Find the slope of a line containing each pair of points. a) ( 3, 4), (2, 2) b) (4,2) and ( 7,2) c) ( 5,8) and (2,3) d) (3,9) and (3,6) As illustrated above, there are 4 types of slopes. 1. A line with a positive slope rises left to right. 2. A line with a negative slope falls left to right. 3. A line with a zero slope is horizontal. 4. A line with an undefined slope (zero denominator) is vertical. Positive slope Negative slope Zero slope Undefined slope
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Linear Equations: Begin with the slope formula, letting 1 1 ( , ) x y be one point of a line and any other point be ( x , y ). Cross multiply and the result is called the Point-Slope form of a line.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}