Question

Help please i dont understand this !

Answer 1

`\boxed{(x)}\boxed{f(x)} \\ \boxed{ - 4}\boxed{ + 5}\\ \boxed{ - 3}\boxed{ + 4}\\ \boxed{ - 2}\boxed{ + 1}\\ \boxed{ - 1}\boxed{ +0}\\ \boxed{ + 0}\boxed{ - 2}\\ \boxed{ + 1}\boxed{ - 4}\\ \boxed{ + 2}\boxed{ - 7}`

Explanation:

`f(x) \: is \: same \: as \: y \to \\ i.e \: y \: is \: a \: function \: of \: x. \\ so \: .....come \: to \: think \: of \: it.... \to \\ if \: y = \: f (x) = - 2x - 3. \\ then \: if \: x = - 4 \\ what \: would \: y \: (i.e \: f(x))\: be : \: ?....... \\ lets \: use \: this \: method \: to \: solve \: the \: above \: questions \\ \\ \boxed{(x)}\boxed{f(x)} \\ \boxed{ - 4}\boxed{ + 5}\\ \boxed{ - 3}\boxed{ + 4}\\ \boxed{ - 2}\boxed{ + 1}\\ \boxed{ - 1}\boxed{ +0}\\ \boxed{ + 0}\boxed{ - 2}\\ \boxed{ + 1}\boxed{ - 4}\\ \boxed{ + 2}\boxed{ - 7} \\ .............................................................. \\ i \: think \: that \: the \: above \: value s\: are \: the \: \\ only \: possible \: answers.`

♨Rage♨

Answer 2

see explanation

Explanation:

You are going to plug in the x values to the equation.

f(-4)=-2(-4)-3 -> f(-4)=8-3 -> f(-4)=5

f(-2)=-2(-2)-3 -> f(-2)=4-3 -> f(-2)=1

f(2)=-2(2)-3 -> f(2)=-2-3 -> f(2)=-5

Then you are going to graph. Plot the points on the table (remember rise over run) and connect them with a straight line.