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Math Part.014

Authored by Shinta Putri

Mathematics

10th Grade

Used 1+ times

Math Part.014
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Suatu grafik fungsi  y=x22x+3y=x^2-2x+3  memiliki titik puncak  . . . . . 

( 3 , -2 )

( -2 , 3 )

( 2 , 1 )

( 1, 2 )

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Grafik  fungsi  y=x2+6xy=-x^2+6x  memiliki nilai maximium  . . . .  . .

( 9 , 3 )

( 3 , 9 )

( -3 , 9 )

( 3 , - 9 )

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Nilai  titik puncak dari grafik  y=ax2+bx6y=ax^2+bx-6  adalah   (12;254)\left(\frac{1}{2};-\frac{25}{4}\right)  . Maka nilai  a dan ba\ dan\ b   berturut - turut  . . . . . .

-1  dan  -1

1  dan 1

1  dan  -1

-1  dan  1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Jika fungsi  (gof)(x)=2x2+4x+5   dan  g(x)=2x+3\left(gof\right)\left(x\right)=2x^2+4x+5\ \ \ dan\ \ g\left(x\right)=2x+3  , maka nilai  f(x)f\left(x\right)  =  . . . . . . . 

 f(x)=x22x1f\left(x\right)=x^2-2x-1  

 f(x)=x2+2x+1f\left(x\right)=x^2+2x+1  

 f(x)=x2+2x+1f\left(x\right)=-x^2+2x+1  

 f(x)=x22x+1f\left(x\right)=-x^2-2x+1  

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Diketahui suatu fungsi g(x)=2x+6 ;  h(x)=x22   dan  (fogoh)(x)=2x2+4g\left(x\right)=2x+6\ ;\ \ h\left(x\right)=x^2-2\ \ \ dan\ \ \left(fogoh\right)\left(x\right)=2x^2+4  maka nilai dari  f(x)=f\left(x\right)=  . . . . . . . 

 f(x)=x+2f\left(x\right)=x+2  

 f(x)=x2f\left(x\right)=x-2  

 f(x)=x+2f\left(x\right)=\sqrt{x+2}  

 f(x)=x2f\left(x\right)=\sqrt{x-2}  

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Persamaan grafik fungsi kuadrat yang mempunyai titik balik minimum (1, 2) dan melalui titik (2, 3) adalah ...

y=x22x+3y=x^2-2x+3

y=x2+2x+3y=x^2+2x+3

y=x22x1y=x^2-2x-1

y=x2+2x+1y=x^2+2x+1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Persamaan sumbu simetri grafik fungsi kuadrat y=5x220x+1y=5x^2-20x+1  adalah . . . .

 x=4x=4  

 x=2x=2  

 x= 4x=\ -4  

 x=2x=-2  

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