Graphs of Practical Situations (HSC SSCE Mathematics Standard): Flashcards

In the exponent (power)

$y = a^x$ and $y = a^{-x}$ where $a > 0$

(0, 1)

Always positive (above x-axis)

The x-axis

$y = a^x$ (y increases as x increases)

$y = a^{-x}$ (y decreases as x increases)

Reflection in the y-axis

Population, compound interest, disease spread, tech adoption

Radioactive decay, depreciation, medication, cooling