Desperate please Hurry Question Down Below
2 answers:
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Answer:
Average rate of change of function is -2.
Step-by-step explanation:
Given .
we have to find the average rate of change for the quadratic function from x=−2 to x = 2.
The average rate of change of the function f(x) on interval [-2,2] is
Given that ∠B ≅ ∠C.
to prove that the sides AB = AC
This can be done by the method of contradiction.
If possible let AB =AC
Then either AB>AC or AB<AC
Case i: If AB>AC, then by triangle axiom, Angle C > angle B.
But since angle C = angle B, we get AB cannot be greater than AC
Case ii: If AB<AC, then by triangle axiom, Angle C < angle B.
But since angle C = angle B, we get AB cannot be less than AC
Conclusion:
Since AB cannot be greater than AC nor less than AC, we have only one possibility. that is AB =AC
Hence if angle B = angle C it follows that
AB = AC, and AB ≅ AC.