Get expert advice and community support for all your questions on IDNLearn.com. Discover in-depth answers to your questions from our community of experienced professionals.

Jemly R. Rago
Grade 11 AQM

1. Evaluate the following function at [tex]x = -4[/tex]:

(a) [tex]f(x) = x^3 - 64[/tex]


Sagot :

Sure! Let's evaluate the function [tex]\( f(x) = x^3 - 64 \)[/tex] at [tex]\( x = -4 \)[/tex].

1. Start by substituting [tex]\( x = -4 \)[/tex] into the function [tex]\( f(x) \)[/tex]:
[tex]\[ f(-4) = (-4)^3 - 64 \][/tex]

2. Compute [tex]\((-4)^3\)[/tex]:
[tex]\[ (-4)^3 = -4 \times -4 \times -4 = -64 \][/tex]

3. Substitute [tex]\(-64\)[/tex] into the equation:
[tex]\[ f(-4) = -64 - 64 \][/tex]

4. Finally, perform the subtraction:
[tex]\[ f(-4) = -128 \][/tex]

Therefore, the value of the function [tex]\( f(x) = x^3 - 64 \)[/tex] at [tex]\( x = -4 \)[/tex] is [tex]\( -128 \)[/tex].