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4.1 SlopeIntercept formcomp.notebook
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October 21, 2019
Nov 119:34 PM
4.1 SlopeIntercept Form
The point where a line crosses the yaxis is called the yintercept.
The slope intercept equation of a linear equation is
y = m x + b
Refresh 1What is the slope and the yintercept of the line y=5x+6?
Refresh 2 Write the equation of a line with m=2/3 and b=6.
4.1 SlopeIntercept formcomp.notebook
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October 21, 2019
Nov 119:34 PM
Ex.1
Write an equation in slopeintercept form for a line that passes through the point (2,3) with slope ½.
Ex.2 Write an equation in slopeintercept form for a line that passes through the points (6,2) and (3,4).
4.1 SlopeIntercept formcomp.notebook
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October 21, 2019
Nov 119:34 PM
Ex.3 The following table shows Malik’s cost of selfservice gasoline for two months of this year. Write a linear equation in slopeintercept form based on the data to predict Malik’s cost of gasoline the first of any month during the year, using 1 to represent January.What would be the cost in December?
Date Cost of a Gallon of Gas
June 1 $3.20July 1 $3.42