Answer:
d
Step-by-step explanation:
The red graph is an enlargement of the black graph.
Note coordinates of vertices of black graph to coordinates of red graph
(2, 2 ) → (2, 4 )
(4, - 2 ) → (4, - 4 )
(- 2, - 2 ) → (- 2, - 4 )
The y- coordinates of the red graph are twice the y- coordinates of the black graph.
and
[tex]\frac{y}{2}[/tex] = f(x) ← multiply both sides by 2
y = 2f(x) ← as required, thus
equation of red graph is
[tex]\frac{y}{2}[/tex] = f(x) → d
