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AP EAMCET · Maths · Straight Lines

The line which is parallel to x-axis and crosses the curve y=x at an angle 45°, is

  1. A y=14
  2. B y=12
  3. C y=1
  4. D y=4
Verified Solution

Answer & Solution

Correct Answer

(B) y=12

Step-by-step Solution

Detailed explanation

The equation of a given curve is y=x ...i On diffrenciating the above equation with respect to x we get the slope ⇒dydx=12x The slope of the line at x1, y1, m1=12x1 and let line parallel to x-axis is y=k ...ii Whose slope, m2=0 Since, 45° is the angle…