Using the graph, the value of r(-2) is 8
Graph of functions
From the question, we are to determine the value of r(-2)
The given graph is the graph of the function r(x), and we have that
y = r(x)
To determine the value of r(-2), we will trace from the point where x = -2 on the graph to the parabola (the curve of a quadratic function), and then read the corresponding value on the y-axis by tracing this point to the y-axis.
On the graph, if we trace from the point x = -2, to the curve, we will find out that the value of y is 8.
Thus,
From y = r(x), we can write that
8 = r(-2)
∴ r(-2) = 8
hence, the value of r(-2) is 8
Learn more on Graph of functions here: https://brainly.com/question/14212952
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