Lesson 5.1 Writing Linear Equations from Graphs – and Word Problems *Prior Knowledge: ; Slope/Rate of Change - Y-intercept (0,b) ; where the line hits the line from – “y-axis” (Vertical Origin) *See graph on board (p. 125)* Writing an equation from a graph: Find the Slope pick 2 coordinate points on the graph and find the slope – either by formula or Find the y-intercept where the line hits the the – “y-axis” or value when “x” is 0 Ex: (p. 128 - #3) Insert slope, y-intercept, and slope intercept formula Writing an equation from a word problem: Find the Slope use the information to determine what is attached to each – input value. Find the y-intercept the initial value/one-time value. – Ex: (p. 129 - #5) Insert slope, y-intercept, and slope intercept formula
Lesson 5.1 – Writing Linear Equations from Graphs and Word Problems *Prior Knowledge: Slope/Rate of Change - ; Y-intercept – (0,b) ; where the line hits the “y-axis” (Vertical line from Origin) *See graph on board (p. 125)* Writing an equation from a graph: Find the Slope – pick 2 coordinate points on the graph and find the slope either by formula or Find the y-intercept – where the line hits the “y-axis” or the value when “x” is 0 Ex: (p. 128 - #3) Insert slope, y-intercept, and slope intercept formula Writing an equation from a word problem: Find the Slope – use the information to determine what is attached to each input value. Find the y-intercept – the initial value/one-time value. Ex: (p. 129 - #5) Insert slope, y-intercept, and slope intercept formula