Question

Which of the following shows the graph of y=-(2)^3 – 1?

Answer 1

Answer:

The first graph

Step-by-step explanation:

Given

$y = -(2)^x - 1$

Required

The graph

Set the exponent part to get the minimum/maximum of the graph

So, we have:

$y = 0 - 1$

$y = - 1$

The above implies that the curve passes through the y-axis at $y = - 1$.

By comparing the two graphs, we can conclude that the first represents $y = -(2)^x - 1$ because it passes through $y = - 1$