Question 1203642
<pre>
{{{y = -3f(expr(1/4)(x-1))+5}}}

{{{"f("}}}{{{expr(1/4)x}}}{{{")"}}} 

This is multiplying the variable x only by a number < 1 which stretches the
graph horizontally by a factor of 4, which stretches the point (10,-2)
horizontally to (40,-2).

{{{"f("}}}{{{expr(1/4)(x-1)}}}{{{")"}}} 

This is subtracting 1 from the variable x only by 1 which shifts the graph 
horizontally 1 unit right, which shifts the point (40,-2) to (40,-1).

{{{3}}}{{{"f("}}}{{{expr(1/4)(x-1)}}}{{{")"}}} 

This is multiplying the entire function by 3 which stretches the graph
vertically by a factor of 3 and stretches the point (40,-1) to (40,-3)

{{{-3}}}{{{"f("}}}{{{expr(1/4)(x-1)}}}{{{")"}}} 

This is multiplying the entire function by -1 which reflects the graph
vertically across the x-axis, which moves the point (40,-3) vertically across
the x-axis to (40,3).

{{{-3}}}{{{"f("}}}{{{expr(1/4)(x-1)}}}{{{")"}}}{{{""+""}}}{{{5}}} 

This is adding 5 to the entire function which shifts the graph vertically upward
by 5 units, which moves the point (40,3) vertically upward to (40,8).

Edwin</pre>