February 17 2015

February 17 2015

• 1.
   Warm -Up; Khan Topic  Continue Slope Practice  Slope - Intercept Formula
• 2.
  Interpreting Graphs ofLinear and Non-Linear Functions
• 4.
  nonlinear 1 1pi 1 0 < Linear/ Nonlinear
• 5.
  Given this,what arethe x and y axes? faster 16 7 twice
• 6.
  • Find therange of the function below when the domain is {-4, -1, 3} y = |x| - 2 Warm Up/Test Review 4 𝟏 𝟑 0 0 -13
• 8.
  x y x2 – x1 y2 –y1 change in y change in x The slope of the line passing through the two points (x1, y1) and (x2, y2) is given by the formula (x1, y1) (x2, y2) x2 – x1 The rise is the difference of the y-values of two points on a line. The run is the difference in the x-values of two points on a line. The constant rate of change of a straight line is called the slope. The Slope of a Line: Slope is usually represented by the letter m (from the French, monter, which means “to go up”). Straight Lines (linear functions) are straight because the slope never changes!!
• 9.
  (3, 2) (–1, –2) Thencount horizontally to a second point to find the run. Count vertically from any one point on the line to find the rise. Finding the Slope of a Line slope = 𝟒 𝟒 = 1 The slope of the line is 1. It does not matter which ordered pair you start with. slope = −𝟒 −𝟒 = 1 4 4
• 10.
  (5, 4) Then counthorizontally to a second point to find the run. Count vertically from any one point on the line to find the rise. slope = 𝟐 𝟒 = 𝟏 𝟐 The slope of the line is 𝟏 𝟐 slope = −𝟐 −𝟒 = 𝟏 𝟐 Find the slope of the line: It does not matter which y you begin from. (1, 2) The Slope of a Line The slope of a line is the ratio of rise to run for any two points on the line. change in y change in x Rise Run =
• 11.
  Find the slopeof the line passing through the points (2, 3) & (4, 5). The x1 and y1 must come from the same ordered pair. y2 – y1 x2 – x1 m = 5 – 3 4 – 2 = = 2 2 = 1 2 2(2, 3) (4, 5) x y The Slope of a Line Name one other ordered pair on this line.
• 12.
  The Slope ofa Line What is the slope of this, and all horizontal lines? Don't guess, just plug the numbers in... All horizontal lines have a slope of zero.
• 13.
  The Slope ofa Line What is the slope of this, and all vertical lines? All vertical lines have a slope that is undefined because... a denominator cannot be zero.
• 14.
  m = 0 m= 2 m is undefined m = 1 2 m = - 1 4 y2 – y1 x2 – x1 m = The Slope of a Line
• 15.
  The Slope ofa Line
• 16.
  What is theslope of the line? The Slope of a Line Find the next point in both directions
• 17.
  Find the slopeof each line: 23 m = 𝟏 𝟐 m = 𝟐m = - 𝟐 1
• 18.
  Grand Prix Go-Carts: Whatis the y-intercept? What are the independent (x) and dependent (y) variables? How does each change in the x variable affect the dependent, y variable? In other words, what is the rate of change? Which graph shows the price function?
• 19.
  Test Review: A B C D E
• 20.
  Is this grapha function? By what percent did the price of silver drop between Aug. 7th & August 9th? 36% Test Review: