Question

Given that le" class="latex-formula"> is on the graph of $f(x)$, find the corresponding point for the function $f(-\frac{1}{4}x)$.

Answer 1

f(-1/4x) is a horizontal expansion by a factor of 4 together with a reflection across the y-axis. When the point (-5, 9) is horizontally expanded by the factor 4 and reflected across the y-axis, it becomes (20, 9).