4.1 slopeintercept form - amphitheater public schools...4.1 slopeintercept formcomp.notebook 2...

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4.1 SlopeIntercept formcomp.notebook 1 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 1 What 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.

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Page 1: 4.1 SlopeIntercept Form - Amphitheater Public Schools...4.1 SlopeIntercept formcomp.notebook 2 October 21, 2019 Nov 119:34 PM Ex.1 Write an equation in slopeintercept form for a line

4.1 Slope­Intercept formcomp.notebook

1

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.

Page 2: 4.1 SlopeIntercept Form - Amphitheater Public Schools...4.1 SlopeIntercept formcomp.notebook 2 October 21, 2019 Nov 119:34 PM Ex.1 Write an equation in slopeintercept form for a line

4.1 Slope­Intercept formcomp.notebook

2

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). 

Page 3: 4.1 SlopeIntercept Form - Amphitheater Public Schools...4.1 SlopeIntercept formcomp.notebook 2 October 21, 2019 Nov 119:34 PM Ex.1 Write an equation in slopeintercept form for a line

4.1 Slope­Intercept formcomp.notebook

3

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