Slope, Intercepts, and Equation of a line. Slope intercept form:

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Presentation transcript:

Slope, Intercepts, and Equation of a line

Slope intercept form:

What’s the equation of the line? Then change the equation to standard form. m = 5 b = -2

What’s the slope? What is the equation of this line?

Find the slope of the line containing the indicated points. (-2, 1) and (-3, 8)

Find the slope of the line containing the indicated points. (-2, 7) and (-1, -9)

Find the slope of the line containing the indicated points.

Find the slope and y intercept:

Graph using slope & y- intercept

Find the equation in slope intercept form:

What is the x-Intercept? Y- intercept?

Find the intercepts – then graph.

What is the slope of the horizontal line shown below? Equation?

What is the slope of the Vertical line shown below? Equation?

Find the equation: (3,-2) (6, -2)

Find the equation: (-1, 3) (-1, 8)

Time to apply!!!  Tristan buys a computer for $2100. For tax purposes, he declares a linear depreciation (loss of value) of $700 per year. Let y be the declared value of the computer after x years.  What is the slope of the line that models this depreciation?  Find the y-intercept of the line.  Write a linear equation in slope-intercept form to model the value of the computer over time.  Find the value of Tristan’s computer after 2.5 years