Question

if a line is making an angle if 45° with x axis and passing through (0,0) then equation of line is
1) y=x+1
2) y=x
3)y=x-1
4)y= -x​

Answer 1

Answer:

y = x

Step-by-step explanation:

If the slope of the line is the tangent of the angle the line makes with the x-axis, then the slope of the line that makes a 45-degree angle with the x-axis is tan(45) = 1. So, the line we are looking for passes through the point (0,0) and has the slope of m = 1. y = x.

Answer 2

Answer:

y=x is the answer

Step-by-step explanation:

lets take other point as (x2, y2) x2=x,y2=y

given point as (x1, y1) where x1=0,y1=0

slope=y2-y1/x2-x1=tan theta

y/x=tan 45

y/x=1

y=x