Identify the y-intercept of the function, f(x) = -x2 + 3x + 5.
2 answers:
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Answer:
1)
2)
3)
4)
5)
Step-by-step explanation:
According to the information given in the exercise, the value of "x" is:
Then:
1) You must substitute into the expresion
:
Now, you must evaluate:
2) You have to substitute the given value of "x" into the second expression:
Finally, evaluating, you get the following result:
3) According to the Zero exponent Rule, any non-zero number with an exponent of zero is equal to 1.
Then, substituting into the expression
and then evaluating, you get:
4) By definition:
Then, substituting into
and evaluating, you get:
5) Since:
When you substitute the given value of "x" into the last expression and then you evaluate, you get: