Mathematics for IGCSE & O level - Sketching Curves (Section 1 - No. 43)
What happens to the graph of y = 1/x if you multiply the whole equation by -1?
It reflects across the y-axis.
It reflects across the x-axis.
It shifts down 1 unit.
It shifts to the left 1 unit.
Vysvětlení
Multiplying by -1 reflects the graph across the x-axis.