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anonymous

  • one year ago

A student has attempted to graph an equation that contains the point (1, -4) and has a slope of 1/3. a. What is the correct equation in slope-intercept form? b. What is the student's error on the graph below?

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  1. anonymous
    • one year ago
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  2. amoodarya
    • one year ago
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    \[y-y_0=m(x-x_0)\] line passes through point (x0,y0) and slope=m

  3. anonymous
    • one year ago
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    thank you!

  4. amoodarya
    • one year ago
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    \[y-(-4)=\frac{1}{3}(x-1)\]

  5. amoodarya
    • one year ago
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    but that line (picture) passes through (1,-4) (2,-1) \[m=\frac{\Delta y}{\Delta x}=\frac{y_1-y_0}{x_1-x_0}=\frac{-4-(-1)}{1-2}=+3\] do you get mistake ?

  6. anonymous
    • one year ago
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    not really :(

  7. amoodarya
    • one year ago
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    you need to write a line ,with slope of 1/3 not 3 !

  8. anonymous
    • one year ago
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    oooh okay thanks and is y-4=1/3 x- 1 the correct equation?

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