Answer:
The value of 5·K(-3) - 7·K(-4) is -11
Explanation:
The graph of the function y = K(x) is given;
Given that the graph of the function is defined in the given interval of the graph from -5 < x < 5, the value of the function is given from directly reading from the graph
The value of y at x = -3 is read from the graph as y = K(-3) = 2
The value of y at x = -4 is read from the graph as y = K(-4) = 3
Therefore;
5·K(-3) - 7·K(-4) = 5 × 2 - 7 × 3 = -11
The value of 5·K(-3) - 7·K(-4) = -11