What are the values of a, b, and c in the quadratic equation 0 = 5x - 4x2 – 2?
a = 5, b = 4, C = 2
O a= 5, b= -4, C = -2
O a=-4, b = 5, c = -2
O a = 4, b = -5, c = -2

Option C.

Step-by-step explanation:

The standard form of a quadratic function is

        ... (i)

The given equation is  

It can be rewritten as

       ... (ii)

On comparing (i) and (ii), we get

Hence, the correct option is C.

a=-4, b = 5, c = -2

Step-by-step explanation:

The graph has an initial value of 60, and each successive term is determined by multiplying by One-third.

Step-by-step explanation:

Which is the best description of the graph of the function f(x) = 60(One-third)x?

A. The graph has an initial value of 20, and each successive term is determined by subtracting One-third.

B. The graph has an initial value of 20, and each successive term is determined by multiplying by One-third.

C. The graph has an initial value of 60, and each successive term is determined by subtracting One-third.

D. The graph has an initial value of 60, and each successive term is determined by multiplying by One-third.

Given:

f(x) = 60 (1/3)^x         see graph attached.

Examining the graph, we notice that

1. The graph has an initial value of 60, at point (0,60)

2. The graph decreases as x increases.  Each successive term is determined by multiplying by 1/3, namely in the sequence

{(0,60), (1,20), (2, 20/3), (3, 20/9), ...}

This means the choice is D (or the fourth one).