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table of values! I’m mixing up negative and minus signs in my coculator PLEASE HELP

Table Of Values Im Mixing Up Negative And Minus Signs In My Coculator PLEASE HELP class=

Sagot :

Given,

The function is,

[tex]f(x)=-x^2-5x+4[/tex]

Subtituting x = -5 then,

[tex]\begin{gathered} f(-5)=-(-5)^2-5(-5)+4 \\ =-25+25+4 \\ =4 \end{gathered}[/tex]

Subtituting x = -4 then,

[tex]\begin{gathered} f(-4)=-(-4)^2-5(-4)+4 \\ =-16+20+4 \\ =8 \end{gathered}[/tex]

Subtituting x = -3 then,

[tex]\begin{gathered} f(-3)=-(-3)^2-5(-3)+4 \\ =-9+15+4 \\ =10 \end{gathered}[/tex]

Subtituting x = -2 then,

[tex]\begin{gathered} f(-2)=-(-2)^2-5(-2)+4 \\ =-4+10+4 \\ =10 \end{gathered}[/tex]

Subtituting x = -1 then,

[tex]\begin{gathered} f(-1)=-(-1)^2-5(-1)+4 \\ =-1+5+4 \\ =8 \end{gathered}[/tex]

Subtituting x =0 then,

[tex]\begin{gathered} f(0)=-(0)^2-5(0)+4 \\ =4 \end{gathered}[/tex]

Subtituting x = 1 then,

[tex]\begin{gathered} f(1)=-(1)^2-5(1)+4 \\ =-1-5+4 \\ =-2 \end{gathered}[/tex]

Subtituting x = 2 then,

[tex]\begin{gathered} f(2)=-(2)^2-5(2)+4 \\ =-4-10+4 \\ =-10 \end{gathered}[/tex]

Hence, the output of the different inputs of the function is obtained.

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