Question 388860
How do I express this as an equation so I can graph it? {{{Over a 10-year period, the average cost, c of bus fare is modeled by c = .85+.10t where t=0 represents the beginning of the period.}}}
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You have it expressed as an equation:
c(t) = 0.85+0.10t
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You need two points.
Use (0,0.85) and (10,1.85)
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Plot the points and draw a line thru them to get:
{{{graph(400,300,-10,100,-10,10,0.85+0.1x)}}}
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Cheers,
Stan H.