SOLUTION: Alfred is practicing typing. The first time he tested himself, he could type 23 words per minute. After practicing for a week, he could type 26 words per minute. After two weeks he

Algebra ->  -> SOLUTION: Alfred is practicing typing. The first time he tested himself, he could type 23 words per minute. After practicing for a week, he could type 26 words per minute. After two weeks he      Log On

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 Click here to see ALL problems on Sequences-and-series Question 335634: Alfred is practicing typing. The first time he tested himself, he could type 23 words per minute. After practicing for a week, he could type 26 words per minute. After two weeks he could type 29 words per minute. Based on this pattern, predict how fast Alfred will be able to type after 4 weeks of practiceAnswer by stanbon(60771)   (Show Source): You can put this solution on YOUR website!Alfred is practicing typing. The first time he tested himself, he could type 23 words per minute. After practicing for a week, he could type 26 words per minute. After two weeks he could type 29 words per minute. Based on this pattern, predict how fast Alfred will be able to type after 4 weeks of practice --------------------------- You have 3 points: (0,23) ; (1,26) ; (2,29) ------------------------------- Notice that y increases 3 for every x-increase of 1; that is the slope; Notice that y = 23 when x = 0 ; that is the y-intercept. ------------------------------- f(x) = 3x+23 ---- Therefore f(4) = 3*4 = 23 = 35 =============================== Cheers, Stan H.