Question

24. Evaluate f(x) =
5x+25\
2x^2-50
when x = -5.

1
- 1 / 2
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0

Answer 1

Answer:

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Step-by-step explanation:

1. Input x = -5 in function f(x):

$5(-5) + 25 / 2(-5)^{2} - 50$

$-25+25 / 50 - 50$

$0/0$

2. Determine the domain

$0/0$

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Answer 2

$\Large\textsf{\textbf{Answer\::}}$

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$\Large\textsf{\textbf{Calculations\::}}$

Plug in the value of x (-5) and simplify as follows :

$\displaystyle\frac{5(-5)+25}{2(-5)^2-50}$

$\displaystyle\frac{-25+25}{2(25)-50}$

$\displaystyle\frac{0}{50-50}$

$\displaystyle\frac{0}{0}$

We know that we can't divide by zero. Dividing by zero results in infinity , which is not a number .

So the expression is :

$\textsf{\textbf{und.efined}}$

$\small\text{hope\:helpful~}$