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- #1

This is the graphical representation (thanks to Desmos Graphing Calculator):

So I have substituted the points in the equation to get their respective y-values.

For example:

f(1.1) = -3log(1.1)+2

f(1.1) =~ 1.87

I've done the questions myself using this method to find the slope of the secant line, and I wanted confirmation that I was doing it right.

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I've written it on paper and unfortunately I don't have a scanner so I will just type out (i) and (ii) to show my rationale.

4.a)

i] m = (Y2-Y1) / (X2-X1)

= (1.097-2) / (2-1)

= -0.903 / 1

m = -0.903

ii] m = (Y2-Y1) / (X2-X1)

= (1.472-2) / (1.5-1)

= -0.528 / 0.5

m = -1.056

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I just wanted to know if I was doing it correctly, and if not how can I answer this question? Thanks in advance.