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anonymous

  • one year ago

Write an equation of the line that passes through (8, 3) and (4, 3). A. y = 3 B. y = 4x + 3 C. y = 4 D. y = 3x

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  1. anonymous
    • one year ago
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    first find the slope of this line: \[m=\frac{ y_2-y_1 }{ x_2-x_1 }\]

  2. anonymous
    • one year ago
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    i think it's C not sure if that's right

  3. YoloShroom
    • one year ago
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    (y2-y1)/(x2-x1) so 8 = x1 , 3 =y1, 4=x2, 3=x2 Then input into y=mx+b and use b=3 for the y intercept

  4. YoloShroom
    • one year ago
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    3=y2*

  5. anonymous
    • one year ago
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    \[m=\frac{ 3-3 }{ 4-8 }=0\]

  6. YoloShroom
    • one year ago
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    yup!

  7. anonymous
    • one year ago
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    so ? would that just be D?

  8. anonymous
    • one year ago
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    ?

  9. campbell_st
    • one year ago
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    a method I'd recommend for this question is to plot the points |dw:1444158707262:dw| and then you would see its a horizontal line... and would avoid the need for calculations... and D is incorrect you need to know horizontal lines have a zero slope...

  10. anonymous
    • one year ago
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    what would it be ?

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