Equation of a line is in the form y = mx+c, where m is the gradient and c is the y-intercept.
First step is to find the gradient.
m = (y2-y1)/(x2-x1)
= ( 5- -8)/(8-4) = 13/4
We have y = (13/4)x + c
Now we replace one of the coordinates to find c. Let’s replace (4,-8)
We have: -8 = (13/4)*4 + c
-8=13+c
c=-8-13= -21
Therefore, equation of line is:
y = (13/4)x - 21
cot x = cos x / sin x
cot x = .85 / .52 = 1.6346
Answer:
its A
Step-by-step explanation:
The answer is 25
x 33 1/3% = 75
75 / 33 1/3
0.3333
(75)(0.333) = 25
24.9999999 rounds to 25
Hope this helps, have a BLESSED day! :-)
Answer:
Undefined
Step-by-step explanation:
has a slope of , since it is a horizontal line. The only types of lines that are perpendicular to horizontal lines are vertical lines, which are usually in the form (where is any real number). Vertical lines have an undefined slope, so the answer is undefined. Hope this helps!