What type of number is 3π+ 1?

(choice a)
a
whole number

(choice b)
b
integer

(choice c)
c
rational

(choice d)
d
irrational

D. Irrational.

Step-by-step explanation:

Now  π is irrational.

Multiplying π by 3 gives another irrational number.  Also if you add a rational to an irrational number the result is irrational.

f(x) is going down by 4

step-by-step explanation:

(its either that or its going left by 4)

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.