WLA - Maths - Edexcel AS Level - 1-A24Q

Which is the correct sketch of the graph?

 $y=\left(x+2\right)^2\left(3-x\right)$  

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Tags

CCSS.HSA.APR.B.3

What is the equation of the line?

• $y=\left(x-2\right)\left(x+1\right)^2\left(x+3\right)$

• $y=\left(x-2\right)\left(x+1\right)\left(x+3\right)$

• $y=-\left(x+2\right)\left(x-1\right)\left(x-3\right)$

• $y=-\left(x+2\right)\left(x-1\right)^2\left(x-3\right)$

Tags

CCSS.HSA.APR.B.3

Fully Factorise:

 $6x^2-10x-24$  

•  $2\left(3x+4\right)\left(x-3\right)$  

•  $2\left(3x-4\right)\left(x+3\right)$  

•  $\left(6x+8\right)\left(x-3\right)$  

•  $\left(2x-6\right)\left(3x+4\right)$  

 $x=2^n$   and  $y=2x$  

Write y in terms of n

•  $y=4^n$  

•  $y=2^{2n}$  

•  $y=2^{2^n}$  

•  $y=2^{n+1}$  

Tags

CCSS.HSF.LE.A.2

If $x=2^y$ then which expression is equivalent to $2^{2y}$  

•  $x^2$  

•  $2x$  

•  $x+2$  

•  $x^2\times x^y$  

 $0<\left(x+3\right)\left(x-1\right)$  Which is the correct sketch to solve:

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Solve
 $10-x^2<0$  

•  $x>\sqrt{10},\ x<-\sqrt{10}$  

•  $x<\sqrt{10},\ x>-\sqrt{10}$  

•  $\sqrt{10}<x<-\sqrt{10}$  

•  $-\sqrt{10}<x<\sqrt{10}$  

Which of the following statements is true
 $x^4-3x^2+2=0$  

•  $x^{ }=\frac{-3\pm\sqrt{\left(-3\right)^2-4\left(1\right)\left(2\right)}}{2\left(1\right)}$  

•  $x=2,\ x=1$  

•  $x^2=2,\ x^2=1$  

• Requires a calculator to solve

Tags

CCSS.HSA-REI.B.4B

Solve
 $2x+7\sqrt{x}+3=0$  

•  $x=-3,\ x\ =-\frac{1}{2}$  

•  $x=3,\ x=\frac{1}{2}$  

•  $x=9,\ x=\frac{1}{4}$  

•  $x=\sqrt{3},\ x=\sqrt{\frac{1}{2}}$  

Tags

CCSS.HSA.REI.A.2

Which set of inequalities describes this shaded region

•  $x>0$  , $y>1$  , $y-2x<3$  ,  $x<3$  
  

•  $y>0$  , $x>1$  , $y-2x>3$  ,  $y<3$  

•  $x>0$  , $y>1$  , $y-2x>3$  ,  $x<3$  

•  $y>0$  ,  $x>1$  ,  $y-2x<3$  ,  $y<3$  

Tags

CCSS.HSA.REI.D.12