Question : The graph of the equation $x=a(a \neq 0)$ is a_____.

Option 1: line parallel to the x-axis

Option 2: line parallel to the y-axis

Option 3: line at an angle of 45 degree to y-axis

Option 4: line at an angle of 45 degree to x-axis

Question : If $\cos x=\sin y$ and $\cot(x–40°)=\tan(50°–y)$, then the values of $x$ and $y$ are:

Option 1: $x=70°,y=2°$

Option 2: $x=75°,y=15°$

Option 3: $x=85°,y=5°$

Option 4: $x=80°,y=10°$

Question : If $\sin17°=\frac{x}{y}$, then the value of $(\sec17°–\sin73°)$ is:

Option 1: $\frac{y^{2}}{x\sqrt{y^{2}–x^{2}}}$

Option 2: $\frac{x^{2}}{y\sqrt{y^{2}–x^{2}}}$

Option 3: $\frac{x^{2}}{y\sqrt{x^{2}–y^{2}}}$

Option 4: $\frac{y^{2}}{x\sqrt{x^{2}–y^{2}}}$

Question : Find the coordinates of the points where the graph $57x – 19y = 399$ cuts the coordinate axes.

Option 1: x-axis at(–7, 0) and y-axis at (0, –21)

Option 2: x-axis at(–7, 0) and y-axis at (0, 21)

Option 3: x-axis at (7, 0) and y-axis at (0, –21)

Option 4: x-axis at (7, 0) and y-axis at (0, 21)

Question : At what point does the line $3x+y=-6$ intercept the x-axis?

Option 1: (2, 0)

Option 2: (–2, 0)

Option 3: (0, –6)

Option 4: (0, 6)