F ( x ) = x^4 + 16 x² =
= x² · ( x² + 16 )
For x² + 16:
x 1/2 = (0+/-√(-64))/2= +/-8 i /2 = +/- 4 i
x² + 16 = ( x + 4 i ) · ( x - 4 i )
Answer:
f ( x ) = x² · ( x + 4 i ) · ( x - 4 i )
A graph is a function if there is only one X value for any Y value.
Since the graph is in the shape of a U, there can only be one X for every Y value, so this graph is a function.
The answer is C.
This is a right triangle
the missing is the hypotenuse = √(6² + 8² ) = √100 = 10
The correct answer is the second
Compare to the vertex form of parabola
So vertex should be at (h,k)=(-2,-1)
Graph attached
(I'm learning this right now!)
y = 3x - 3
If a line is perpendicular to another line, they have negative reciprocal slopes.
So you would use the slope -1/3.
Use y - y₁ = m(x - x₁) to get an equation in slope intercept form.
Plug the numbers in.
y - 1 = -1/3(x - 3)
y - 1 = -1/3x + 1
y = -1/3x + 2
An equation of a line perpendicular to line CD is y = -1/3x + 2.
