Answer:
The world population will be 11.64 billions in 21 years.
Step-by-step explanation:
Initial population = 8 billion
Growth rate = 1.8% per year =0.018
Time = 21 years
We are supposed to find what will the world population be in 21 years
Formula :
y = population after t years
r = rate of interest in decimals
t = time in years
Substitute the values :
Hence the world population will be 11.64 billions in 21 years.
The coordinates of the vertex of the graph are (-2, -9).
<h3>Further explanation</h3>The quadratic function is described by the standard equation The graph of a quadratic function is called a parabola.
We have the quadratic function
Finding the minimum value is as follows:
Therefore, the coordinates of the vertex of the graph are (h, k), i.e.,
Other components:
Keywords: the axis of symmetry, for a function, f(x) = x² + 4x − 5, x = −2, which is the graph of f(x) = (x - 1)(x + 4), what, the coordinates of the vertex of the graph, the x-intercept, quadratic function, a standard equation, the y-intercept, parabola, upward, the minimum value
