evaluate the following functions at x = –4
(a) f(x) = x³ – 64
(b) g(x) = |x³ – 3x² – 1|
(c) r(x) = √5 – x
(d) s(x) = x – 4
(e) t(x) = x² – 4x + 4
(a) f(x) = x³ – 64
(b) g(x) = |x³ – 3x² – 1|
(c) r(x) = √5 – x
(d) s(x) = x – 4
(e) t(x) = x² – 4x + 4
Add an Answer
More Questions From This User See All
Answers & Comments
Answer:
(a) f(x) = x³ – 64
f(-4) = (-4)³ – 64
f(-4) = -64 – 64
f(-4) = -128
(b) g(x) = |x³ – 3x² – 1|
g(-4) = (-4)³ - 3(-4)² - 1
g(-4) = (-64) - 3(16) - 1
g(-4) = -64 - 48 - 1
g(-4) = -113
(c) r(x) = √5 – x
r(-4) = √5 - 4
r(-4) = √9
(d) s(x) you= x – 4
s(-4) = -4 - 4
s(-4) = -8
(e) t(x) = x² – 4x + 4
t(-4) = (-4)² - 4(-4) + 4
t(-4) = 16 - (-16) + 4
t(-4) = 16 + 16 + 4
t(-4) = 36