SOLUTION: A linear function r models the growth of your right index fingernail . The length of the fingernail increases 0.7 mm every week. Identify the slope and write in a sentence what the

Algebra ->  Absolute-value -> SOLUTION: A linear function r models the growth of your right index fingernail . The length of the fingernail increases 0.7 mm every week. Identify the slope and write in a sentence what the      Log On


   

Question 1102569: A linear function r models the growth of your right index fingernail . The length of the fingernail increases 0.7 mm every week. Identify the slope and write in a sentence what the y intercept of the graph means when r (0)=12
Answer by josgarithmetic(39623) About Me  (Show Source):
You can put this solution on YOUR website!
y=r%28x%29

r%28x%29=mx%2Bb
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m=0.7
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r%28x%29=0.7x%2Bb

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r%280%29=12------------b=12

highlight%28r%28x%29=0.7x%2B12%29


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r(x), length of nail
x, number of weeks
m=0.7, slope, growth rate in mm per week
b, initial length