2 =
x
from
llsing a
Draw a
graph of y =
x-8xtis.
Take the value
-2 to 10
of
scale
of 의
aom to a
to a units on
x-axis and 2cm to 5 units on y-axls
From the graph
o Obtain the gradient of the curre certx=0
w Obtain the tangent of the curve x=8​