The angle of lines

Calculate the angle between the two lines y = x-8 and y = +12.

Final Answer:

α =  45 °

Step-by-step explanation:

y=x8 y=+12  k1=1 k2=0  t=1+k1 k2k2k1=1+1 001=1  A=arctan(t)=arctan((1))0.7854 rad α=A  °=A π180   °=0.7854 π180   °=45  °=45



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The line slope calculator is helpful for basic calculations in analytic geometry. The coordinates of two points in the plane calculate slope, normal and parametric line equation(s), slope, directional angle, direction vector, the length of the segment, intersections of the coordinate axes, etc.
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You need to know the following knowledge to solve this word math problem:

geometryarithmeticplanimetricsgoniometry and trigonometryUnits of physical quantitiesGrade of the word problem

 
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