Can someone help me please

Question

asked Oct 19, 2023 232k views

2 Answers

Canacourse · Answer 1 · 2023-10-23T04:09:36+0000

Answer:

First question;

f(-1) implies that x = -1, therefore; x < 0

${ \tt{f(x) = 5x - 10}} \\ { \tt{f( - 1) = 5( - 1) - 10}} \\ = { \tt{ - 5 - 10}} \\ { \underline{ \tt{ \: \: f( - 1) = - 15 \: \: }}}$

Second question;

f(0) implies x = 0, therefore; x ≥ 0

${ \tt{f(x) = 5x - 20}} \\ { \tt{f(0) = 5(0) - 20}} \\ { \underline{ \tt{ \: \: f(0) = - 20 \: \: }}}$

Third question;

f(2) implies that x = 2, therefore; x ≥ 0

${ \tt{f(x) = 5x - 20}} \\ { \tt{f(2) = 5(2) - 20}} \\ = { \tt{10 - 20}} \\{ \underline { \tt{f(2) = - 10}}}$