Question 205421
Find the x - and y-intercepts of:
{{{y = log((x))}}} Rewrite this in exponential form:
{{{10^y = x}}} Now the x-intercept occurs at y = 0, so substitute y = 0:
{{{10^0 = x}}} ...and, as you know, anything the zero power is 1, so...
{{{1 = x}}} so you get (1, 0)
Now for:
{{{y = log((0.5x))}}} Rewrite in exponential form:
{{{10^y = (0.5x)}}} Set y = 0:
{{{10^0 = 0.5x}}} or...
{{{1 = 0.5x}}} Divide both sides by 0.5
{{{2 = x}}} so you get (2, 0)