Y= 3x + 1
Y = 3x + 3
Y= 3x + 4
4x - 3y + 20 = 0....4x - 3y = -21
4x - 3y = -21.....multiply by -2
5x - 6y = -25
----------------
-8x + 6y = 42 (result of multiplying by -2)
5x - 6y = -25
---------------add
-3x = 17
x = -17/3
this system of equations has 1 solution
I ussually think of them as arrows telling me where to go.
if it is > you go ----->
if it is < you go <------
The answer would b be d 8 I think
Answer:
(D) 
(E)
has a range of all real numbers.
Step-by-step explanation:
Given the function: 

When y=f(x)=0

Therefore, 
Also,
has a range of all real numbers.
Therefore, Options D and E are correct.