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lilnicki32

  • 4 years ago

write the points(2,21.75) and (4, 21) as slope intercept form

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  1. myininaya
    • 4 years ago
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    \[m=\frac{21.75-21}{2-4}\]

  2. myininaya
    • 4 years ago
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    y=mx+b so you got m above now plug in a point (x,y)=(4,21) to find b

  3. BlingBlong
    • 4 years ago
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    insert a point into the equation y = mx + b and solve for b (x,y)

  4. meverett04
    • 4 years ago
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    slope = (21.75 - 21)/(2-4) = 0.75/-2 = -0.375 now use point-slope y - 21 = -0.375(x - 4) multiply by 1000 1000y - 21000 = -375x + 1500 add 21000 1000y = -375x + 22500 divide by 1000 y = -.375x + 22.5

  5. meverett04
    • 4 years ago
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    with fractions y = (-3/8)x + 45/2

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