Area=(Theta/2) * r^2 This should be it, obviously Theta is your angle and you should use radiants in theory.
First, we determine the slope of the line given, y = 2x + 5
The equation is in slope-intercept where in the slope of the line is the numerical coefficient of x. The slope is therefore 2.
The equation of the new line becomes,
y - 6 = 2(x - 4)
Simplifying, y = 2x - 2
X+10=7x
10=6x
10/6=x
1 4/6 = x
1 2/3 =x
Hope this helps :)
