Lesson 1.e: write and graph linear equations using slope intercept form After this lesson you will be able to… Write the equation of a line in slope-intercept.

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Lesson 1.e: write and graph linear equations using slope intercept form After this lesson you will be able to… Write the equation of a line in slope-intercept form and graph the equation Write the equation of a line given two points on the line Write the equation of a line parallel or perpendicular to an existing line and passes through a given point

Slope-Intercept Form

Then graph the line

Write the equation for the line which has

Write the equation in slope-intercept form and identify the slope and the y-intercept.

More challenging…

Word Problem! Oh No! Your car has broken down! You don't like walking so you call the local garage to find out what they will charge you to fix it. The mechanic tells you that they charge a flat fee of $100 to use the diagnostic computer to find the trouble plus $30 per hour for labor. a) Write a linear equation that will predict the cost of repairing your car. b) Use the equation to find out how much you will have to pay if the repairs take 6 hours.