I am assuming that you want to write an linear equation to model this. Let's find the slope, first. We have...
(9.2 - 7.7) / (6 -1) = 1.5/5 = 3/10
So....using the point-slope form, we have
y - 7.7 = (3/10) (x - 1) simplify
y = .3x - .3 + 7.7
y= .3x + 7.4
Here's a graph.......https://www.desmos.com/calculator/bqjdf69f6j
Of course, the graph is only good for x ≥ 0
Fri 17/4/15
FTJ means "For the Juniors"
1) Birthday fun Thanks Guys you all made my day.
2) Differentiate y=ka^x Thanks CPhill and Melody.
3) An error in the calc has been discovered Thanks Anon
4) Probabiliy with dice Middle high level Thanks CPhill
5) Quadratic Equation with trig Thanks Heureka
6) Difficult function question Well I tried but I didn't get anywhere
7) Complex numbers, polar notation Thanks Bertie
8) Directed numbers Adding negative numbers Thanks Badinage and Melody
9) F12 - looking at the HTML code. Good question from Zac.
10) Simultaneous equations (setting up and solving) Melody
11) Geometry of triangle - Difficult Thanks Bertie
12) Confidence interval for Bernoulli Distribution Thanks Bertie
13) Solve -log(t)=0.64t Thanks Bertie
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