Question

Evaluate the function.
f(x) = 2x² – 3x – 1
Find f(8)

Answer 1

F(8)= 103
F(8)=2(8)^2-3(8)-1

Answer 2

Given ~

`\tt \: f(x) = 2x² – 3x – 1`

`\:`

put the value of x=8 in given function ~

`\tt \: f(8) = 2 ({8})^(2) - 3(8) - 1`

`\:`

`\tt \: f(8) = 2 (64) - 3(8) - 1`

`\:`

`\tt \: f(8) = 128 - 24 - 1`

`\:`

`\tt \: f(8) = 104 - 1`

`\:`

`\underline { \boxed{ \tt \red{f(8) = 103}}}{ \green ✓}`

`\:`

hope helps ~