Answer:
Step-by-step explanation:
hello :
you add 11² to complete the square
x²+22x+11²=50+11²
(x+11)² = 171
Answer:
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(g*f)(x) just simply means g(x)*f(x)
So 3x*1/x=3x/x=3
The domain is all real numbers except x=0
Hope this helped
Answer:
y = -2x - 5
Step-by-step explanation:
First rewrite the second equation into y = mx + b format:
x - 2y = 14
2y = x - 14
y = x/2 - 14/2 (Divide both sides by 2)
y = 1/2x - 7
A line perpendicular to another has the negative reciprocal slope
So the slope of our first equation is -2. (Flip 1/2 = 2, then take the opposite)
Plug in the points (-1, -3) for the x and y coordinates.
x (x coordinate) = -1
y (y coordinate) = -3
slope (m) = -2
-3 = -1(-2) + b
-3 = 2 + b
-3 - 2 = b
b = -5
The equation of the line is y = -2x - 5. Hope this helps! :)
