Answer:
The first option
Step-by-step explanation:
Answer:
3/2 mph
Step-by-step explanation:
= 
cross-multiply: 8r = 12
r = 12/8 or 1.5 mph
Answer: x= 1/4 + 1/2y
Step-by-step explanation:
y-4x + y= -1
2y - 4x= -1
-4x= -1 - 2y
x= 1/4 + 1/2y
Answer:
M
Step-by-step explanation:
A quartic equation/function is a fourth degree polynomial. The general form is:

We can put any values for the variables a, b, c, d, and e.
The general shape of a fourth degree polynomial is in the shape of the English letter "W".
The leading coefficient is the value of "a".
If a is negative, the curve gets upside down, so a "W" going upside down would resemble an "M".
A graph of a quartic with negative leading coefficient is shown attached. The equation is:
