rehooreh14
rehooreh14
06.06.2020 • 
Mathematics

The table below shows some values of y and the corresponding values of y, correct to 2 decimal
4.
5
places, where y =
2
2
3
4.
5
X
5
1.25
a
0.31
b
у
5
r
2
(a) Find the value of a and b.
(b) Using a scale of 4 cm to represent 1 unit
on both axes, draw the graph of y =
for
1 < x < 5.
(c) Use your graph to find
(i) the value of y when x = 1.8,
(ii) the value of x when y = 4.5.

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