Answer:
g. x = -3, 1.875
h. (-3, 1.875)
Explanation:
You want the solutions to K(x) = -6 for K(x) -1.6x² -1.8x +3, and the interval for which K(x) > -6.
g. K(x) = -6
The attached graph shows K(x) = -6 for x = -3 and x = 1.875.
h. K(x) > -6
The attached graph shows K(x) > -6 between the above values, on the interval (-3, 1.875).
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Additional comment
We are grateful that we are directed to use technology on this problem, as a graphing calculator makes answering these questions so much easier.