(5i+4) + (4i-3)
5i+4i-3+4
9i - 1
(2+i) - (3+4i)
(2+i) + (-3 - 4i)
-1 -3i
Each part, real numbers and imaginary, are to be taken as separate pieces; add them with and subtract them by each other as you normally would. :)
Answer:
y=3x-2
Step-by-step explanation:
The slope of the equation is (-2-(-5))/(0-(-1))=3. The y intercept is - 2. So y=3x-2
Answer:
O y = -3
Step-by-step explanation:
The line is horizontal.
x = -3 and x = 3 are vertical lines, so they are incorrect.
The line passes through (3, -3).
(x , y)
Put y as -3.
y = 3
(-3) = 3
Line y = 3 is incorrect.
(-3) = -3
Line y = -3 is correct.
Compute the volume of 
:
Integrate 
over :
So the average value of 
over is 2/(4/3) = 3/2.
Answer:
The x intercepts are -2 ,4
Step-by-step explanation:
f(x)=(x-4)(x+2)
We set the function equal to 0 to determine the x intercepts
0 = (x-4)(x+2)
Using the zero product property
0 = x-4 0 = x+2
x=4 x=-2
The x intercepts are -2 ,4
