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wolverine [178]
3 years ago
6

Given the function f(x) = −2x2 + 3x + 10, find f(1) and f(3). Choose the statement that is true concerning these two values.

Mathematics
1 answer:
AVprozaik [17]3 years ago
6 0

Answer:

Step-by-step explanation:

f(1) = -2(1)^2+3(1)+10

f(1)=11

f(3)= -2(3)^2+3(3)+10

f(3)=1

A is not possible since f(1) is 11 and f(3) is 1.

B is not true, since you can compare them easily.

C is true since 11 is greater than 1.

D is false since C is true.

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Step-by-step explanation:

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What is wrong with the following equation?x2+x−20/x−4=x+5a. (x−4)(x−5)≠x2+x−20b. The left-hand side is not defined f
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Answer:

The answer to this question can be defined as follows:

In part (i), the answer is "option d".

In part (ii), the answer is "option 2".

Step-by-step explanation:

Given:

Part (a)

\Rightarrow \bold{\frac{x^2+x-20}{x-4}=x+5}\\\\

Solve  the above equation:

\Rightarrow x^2+x-20=(x+5)(x-4)\\\\\Rightarrow x^2+x-20=(x^2-4x+5x-20)\\\\\Rightarrow x^2+x-20=x^2-4x+5x-20\\\\\Rightarrow \boxed{x^2+x-20=x^2+x-20}\\

Given:

Part (b)

\Rightarrow \bold{ \lim_{x \to \3} \frac{x^2+x-12}{x-3}= \lim_{x \to 3} (x+4)}\\\\

Solve the above equation:

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apply limit value:

\Rightarrow  (3+4)=  (3+4)\\\\\Rightarrow  7= 7

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