Question : The linear equation such that each point on its graph has an ordinate four times its abscissa is:

Option 1: $y+ 4x= 0$

Option 2: $y = 4x$

Option 3: $x = 4y$

Option 4: $x+ 4y= 0$

Question : The angle between the graph of the linear equation $239x-239y+5=0$ and the x-axis is:

Option 1: 0°

Option 2: 60°

Option 3: 30°

Option 4: 45°

Question : The LCM of $x^2-8x + 15$ and $x^2-5x + 6$ is:

Option 1: $(x-2)(x-3)^2(x-5)$

Option 2: $(x + 5) (x + 2) (x + 3)$

Option 3: $(x + 5) (x - 2) (x - 3)$

Option 4: $(x - 5) (x - 2) (x - 3)$

Question : If $x:y=3:4$, then $4x+5y:5x–2y=?$

Option 1: $7:32$

Option 2: $32:7$

Option 3: $4:3$

Option 4: $5:2$

Question : If $x^4+x^{-4}=47, x>0$, then what is the value of $x+\frac{1}{x}-2?$

Option 1: 1

Option 2: 0

Option 3: 5

Option 4: 3