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Given the function [tex]g(x) = \sqrt{2x + 8}[/tex]:

a) Evaluate [tex]g(4)[/tex].


Sagot :

To evaluate the function [tex]\( g(x) = \sqrt{2x + 8} \)[/tex] when [tex]\( x = 4 \)[/tex]:

1. Substitute [tex]\( x = 4 \)[/tex] into the function [tex]\( g(x) \)[/tex]:
[tex]\[ g(4) = \sqrt{2(4) + 8} \][/tex]

2. Calculate the expression inside the square root:
[tex]\[ 2(4) + 8 = 8 + 8 = 16 \][/tex]

3. Now, take the square root of 16:
[tex]\[ \sqrt{16} = 4 \][/tex]

So, the value of [tex]\( g(4) \)[/tex] is [tex]\( 4.0 \)[/tex].