Answer:
Josh's solution is NOT correct.
Step-by-step explanation:
Josh's solution is NOT correct.
x^2 - 6x - 7 = 0
As you know:
-7 = (-7) * (+1) and -6 = (-7) + (+1) = -6
So factor x^2 - 6x - 7 = 0, you have
(x - 7)(x + 1) = 0
Set each factor = 0 to solve the equation
x - 7 = 0; x = 7
x + 1 = 0; x = -1
Solutions: x = -1 and x = 7
So Josh's solution is NOT correct.
Answer:
The statement is true that a function is a relation in which each y value has ONLY 1 x value.
Step-by-step explanation:
The statement is true that a function is a relation in which each y value has ONLY 1 x value.
The reason is very clear that we can not have the repeated x-values (two same x-values).
For example, given the set of the ordered pairs of a relation
{(3, a), (6, b), (6, c)}
As the same x values (x=6) has two different Y values. Hence, the stated relation is not a function.
In order to be a function, a relation must have only 1 x-value for each y-value.
Therefore, the statement is true that a function is a relation in which each y value has ONLY 1 x value.
Answer:
Multiple answers in Step-by-step explanation
Step-by-step explanation:
x+y = 10
1 + 9 = 10
2 + 8 = 10
3 + 7 = 10
4 + 6 =10
5 + 5 = 10
x - y = 2
4 - 2 = 2
8 - 6 = 2
10 - 8 = 2
12 - 10 = 2
22 - 20 = 2
Answer:
Step-by-step explanation:
Given
The actual length of the parking lot is 75 m
length in the drawing is 135 cm
Here, 75 m is equivalent to 135 cm
Using unitary method
Heya! Princess Kimmie
Let the Direct Variation Equation of Given Ordered pairs be : y = nx
Given : y = 4.8 when x = 4
Substituting the above values in our Equation, we get :
⇒ 4.8 = n × 4
⇒
⇒ The Equation is y = 1.2x
Option 3 is the Answer