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Aleksandr [31]
3 years ago
8

Please Help! Thanks whoever can answer my question!

Mathematics
2 answers:
nlexa [21]3 years ago
4 0
A function is a special relationship where each input has a single output.
therefore :
A is not a function; x=0;  ⇒y₁=3; y₂=4
C is not a function; x=2;⇒ y₁=1; y₂=8
D is not a function; x=1;⇒y₁=2, y₂=-3

only B is a function; each input has a single output. 


Tom [10]3 years ago
4 0

Answer:

The answer is for sure A. Hope this helped!

Step-by-step explanation:


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Find the range of the function for the domain {−3, 1, 4.5}.
Nitella [24]

Answer:

D. {4, 0, -3.5}

Step-by-step explanation:

domain (x) = {-3, 1, 4.5}

y= -x + 1

substituting domain/x-values into y= -x + 1

x= -3

y = -(-3) + 1

= 3+1

= 4

x= 1

y = -(1) + 1

= 0

x = 4.5

y = - (4.5) + 1

= -3.5

therefore, range ={4, 0, -3.5}

6 0
2 years ago
I need help on this slope interception
Minchanka [31]

Answer:

Step-by-step explanation:

           0           -3               y intercept is -3 when x is 0

            x           y

    -1     1              0   -3      subtract 1 for x   and  3 for y

          2             3

          3             6

          4             9

x only increase by ones        y increases by threes

so the slope is   y/x   which means     3/1    up three, 1 to the right

y=mx+b

y = 3x-3

8 0
2 years ago
Choose the measurement that is most precise.
Mamont248 [21]

Answer:

A. 12 mm

Step-by-step explanation:

a million (milimeter) is smaller than a hundred (centimeter)

4 0
2 years ago
Read 2 more answers
You earn $49 for washing 7 cars. How much do you earn for washing 4 cars?
ICE Princess25 [194]

Answer:

Step-by-step explanation:

We can use the rule of three!

We know we have the following relationship:

\frac{49}{7} = \frac{x}{4}

From here, we can solve this like any other equation:

4(\frac{49}{7}) = x\\x = 28

Therefore, you would earn $28 after washing 4 cars.

Good luck!

4 0
2 years ago
Please help solve this problem
ICE Princess25 [194]

Answer:

C

Step-by-step explanation:

13/18 is .72222222

.5+.222=.722

3 0
2 years ago
Read 2 more answers
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