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Zielflug [23.3K]
3 years ago
7

Which choice shows a function with a domain of {–4, –2, 2, 4}? On a coordinate plane, a vertical line is at x = 2. On a coordina

te plane, a line goes through (negative 2, negative 2) and (0, negative 3). {(–4, 2), ( –2, 1), (2, 0), (4, 5)} {(1, –4), (0, –2), (2, 2), (6, 4)}
Mathematics
1 answer:
Molodets [167]3 years ago
5 0

Answer:

\left \{ (-4, 2), ( -2, 1), (2, 0), (4, 5) \right \}

Step-by-step explanation:

Given: Domain of function is \left \{ -4,-2,2,4  \right \}

To find: the function that has domain \left \{ -4,-2,2,4  \right \}

Solution:

A function is a relation in which every element of the domain has a unique image in the co-domain.

For x = 2, domain is \left \{2 \right \}\neq \left \{ -4,-2,2,4 \right \}

For a line that passes through (-2,-2)\,,\,(0,-3),

domain must have 0 but 0\notin  \left \{ -4,-2,2,4 \right \}

Domain of \left \{ (-4, 2), ( -2, 1), (2, 0), (4, 5) \right \} is \left \{ -4,-2,2,4 \right \}

Domain of \left \{ (1, -4), (0, -2), (2, 2), (6, 4) \right \} is \left \{ 1,0,2,6 \right \} \neq  \left \{ -4,-2,2,4 \right \}

So, answer is \left \{ (-4, 2), ( -2, 1), (2, 0), (4, 5) \right \}

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X +5+11x=12x+Y It says find the value of y that makes each equation true for all values of
sladkih [1.3K]
X + 5 + 11x = 12x + y

Simplify: 12x + 5 = 12x + y (We are adding x and 11x on the left side)

Subtract 12x from each side makes each zero.

5 = y

So we can plug in and test. I'm picking two random numbers to plug in for x. 10, and 82

x = 10, y = 5
10 + 5 + 11(10) = 12(10) + 5
125 = 125

x = 82, y = 5
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3 0
3 years ago
. Dillion deposits $150 into his account. One week later, he withdraws $26. Write an addition expression to represent this situa
Lina20 [59]

Answer:

Expression = x + 150 +(- 26)

$124 higher

Step-by-step explanation:

Given

Deposit = \$150

Withdrawal = \$26

Required

Represent the situation

Determine how much higher or lower is the remaining amount

Let the initial amount in his account be represented with x

When he deposited, the balance becomes

Balance = x + 150

When he withdrew, the balance becomes

Balance = x + 150 + (-26)

Hence, the algebraic expression is

Expression = x + 150 +(- 26)

Calculating how much higher or lower

Balance = x + 150 + (-26)

Open bracket

Balance = x + 150 -26

Balance = x + 124

Recall that the initial amount in the account is x

The difference between the balance and the x is as follows

Difference = x + 124 - x

Difference = \$124

<em>Hence, the account has a higher of $124 after both transactions</em>

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Answer:

a. y = (3/5)× x +1

Step-by-step explanation:

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m = (13-4)/(20-5) = 9/15 = 3/5

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