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3 years ago

11

Which ordered pair could be removed from the graph to create a set of ordered pairs that represents a function?

2 answers:

pochemuha3 years ago

4 0

(1,3) hope it helps you good luck

Mazyrski [523]3 years ago

4 0

The <em><u>correct answer</u></em> is:

(1, 3)

Explanation:

A function is a relation in which each element of the domain is mapped to one element of the range. Graphically, this presents as a graph that will pass the vertical line test; that is, a vertical line drawn anywhere on the graph will not hit more than one point.

In order to make this true, we need to eliminate one of the two points that lie on the same vertical line. These points are (1, 1) and (1, 3). Out of these two, the only one listed as a choice is (1, 3).

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Suppose that $g(x)=f^{-1}(x)$. If $g(-15)=0$, $g(0)=3$, $g(3)=9$ and $g(9)=20$, what is $f(f(9))$?

never [62]

Answer:

0

Step-by-step explanation:

$\text{If } g(x)=f^{-1}(x);$ and:$\\g(-15)=0,$ g(0)=3, g(3)=9, g(9)=20$

We are to determine the value of $f(f(9)).$

Now:

$g(0)=f^{-1}(0)=3\\g(3)=f^{-1}(3)=9$

From:

$g(3)=f^{-1}(3)=9\\f(9)=3$

From:

$g(0)=f^{-1}(0)=3\\f(3)=0$

Therefore:

$f(f(9))=f(3)=0$

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3 years ago

Graph the following system of equations and find the x-coordinate of the solution.

Veseljchak [2.6K]

The x - coordinate of the solution is $x=-2$

Explanation:

The two equations are $3 x+3 y=3$ and $y=-\frac{1}{2} x+2$

Let us determine the value of the x - coordinate using the substitution method.

Let us substitute $y=-\frac{1}{2} x+2$ in the equation $3 x+3 y=3$ , we get,

$3x+3(-\frac{1}{2} x+2)=3$

Multiplying the term 3 within the bracket, we get,

$3x-\frac{3}{2} x+6=3$

Subtracting both sides of the equation by 6, we get,

$3x-\frac{3}{2} x=-3$

Taking LCM on the LHS of the equation, we get,

$\frac{6x-3x}{2} =-3$

Subtracting the numerator, we have,

$\frac{3x}{2}=-3$

Multiplying both sides of the equation by 2, we have,

$3x=-6$

Dividing both sides of the equation by 3, we get,

$x=-2$

Thus, the x - coordinate of the solution is $x=-2$

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A store sells 6 T-shirts for $59.34. What is the unit cost per T-shirt?

Zinaida [17]

Answer:

$9.89

Step-by-step explanation:

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2 years ago

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If 3x – 9 = -2x + 16, then 7x=?

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Answer:

The answer to this problem is x equals 14

Step-by-step explanation:

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2 years ago

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in the first quadrant you start at 11,8 and move 9 units left and 3 units up what point will you end up on

Umnica [9.8K]

Eleven subtract nine is two; eight adding three is eleven (2,11)

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2 years ago