Introduction… | NUST Entrance Test Mathematics

The equation of the line through (-8,5) having slope undefined is:

Difficulty: Easy

A:

y+8-0

B:

y=8

C:

y=x+8

D:

x+8=0

The reduction of the equation $x+\sqrt{3}y+4=0$ in the normal form is:

Difficulty: Easy

A:

x\cos 120^{\circ}+y\sin 120^{\circ}=2

B:

x\cos 270^{\circ}+y\sin 270^{\circ}=2

C:

x\cos 30^{\circ}+y\sin 30^{\circ}=2

D:

x\cos 240^{\circ}+y\sin 240^{\circ}=2

The equation of the line which passes through the point (-2,-1) and is perpendicular to the line 3x+y=5 is:

Difficulty: Easy

A:

2x-2y+3=0

B:

2x-7+y=0

C:

3x-y-5=0

D:

None

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