7 Lina and Michele studied the data in the table. They each wrote an equation to represent the relationship between
the number of miles and the number of hours ridden by
a bicyclist.
Lina's equation: m = 9h
Miles, m
Hours,
27
3
45
5
m
18
2
Michele's equation: h =
The teacher said that both equations were correct.
Explain why.
54
6

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.

(x+3)(x+7)

step-by-step explanation:

the correct answer is

c. 4

step-by-step explanation:

the given polynomial is

the degree of the polynomial is the highest exponent which is 4.

the -4 is called the leading coefficient.

this polynomial has only one term so it is a monomial.

the correct answer is option c.