Question

consider the following of X a)y=x b)y=2x c)y=-2x for which function
1)the y-c graph will make an angle 45° with the positive X axis
2) the angle made by the graph with positive X axis is an obtuse angle​

Answer 1

Answer:

1) a part i.e. y=x

2) c part i.e. y=-2x

Explanation:

y=x means tan theta =1 i.e. theta = 45°

y=-2x means tan theta = -2 i.e. theta = -63° or 297° (approx.)