book Maths Puzzle Numerical Ability

The graph of the basic exponential function (y = bx) has
two distinctive characteristics:


a) having a y intercept of (0,1), and

b) having a horizontal asymptote of y=0.

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book Other Question

ok! on my homework, i am supposed to graph a step function of f(x)=[3x-1]. can you show me how to work out problems similiar to this one as well??? thanks! Solve the equation. Beware of extraneous solutions.
((15x/9)/x)+ ((9x+7/(x+2))= 9