Answer:
you can just use formula for perpendicular in the second question
m1 . m2 = -1
Change in y
-------------------
Change in X
Since Y is negative as X goes from left to right, the slope is negative.
An undefined line is vertical (Infinity/0)
Slope of 0 is horizontal (0/Infinity)
B or E
Answer: i think B
Step-by-step explanation:
Answer:
12 is the answer.
Step-by-step explanation:
The best way to get the roots of the equation is to factorize the equation but when the factors are not possible then we should apply the quadratic equations formula to get the value of x.
Now we will try to factorize
x² - 8x -48 = 0
Now we multiply coefficient of highest degree term and constant term
48×1 = 48 which may be factored in 12×4. 8×6, 24×2.
Now we will choose 12×4 out of three because the 12-4 = 8 which is the coefficient of x.
Now its simple.
x²-12x + 4x -48 = 0
x(x -12) + 4(x-12) = 0
(x +4)(x-12) = 0
Therefore roots are x + 4 = 0
x = -4
and x - 12 = 0
x = 12
So the answer is 12.