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3 years ago

6

Determine if (1,2) (3,4) (5,5) is a function

2 answers:

Artyom0805 [142]3 years ago

8 0

It is a function because each input only has one output

lapo4ka [179]3 years ago

4 0

To determine if something is a function or relation, you would look at the x values and determine if every x value has 1 y value. any x vaue with more than one y value would be a relation.
this one would be a function because there only one y value for every x value

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What is the solution to the system of equations below? y = one-half x minus 4 and y = negative 2 x minus 9 (–2, –5) (–2, –3) (2,

Maurinko [17]

We have been given a system of equations $y=\frac{1}{2}x-4$ and $y=-2x-9$ . We are asked to find the solution of our given system of equations.

To solve our system of equations, we will equate both equations as:

$\frac{1}{2}x-4=-2x-9$

$\frac{1}{2}x-4+4=-2x-9+4$

$\frac{1}{2}x=-2x-5$

$\frac{1}{2}x+2x=-2x+2x-5$

$\frac{1}{2}x+\frac{4}{2}x=-5$

$\frac{1+4}{2}x=-5$

$\frac{5}{2}x=-5$

$\frac{2}{5}\cdot \frac{5}{2}x=-5\cdot \frac{2}{5}$

$x=-2$

Upon substituting $x=-2$ in equation $y=-2x-9$ , we will get:

$y=-2(-2)-9$

$y=4-9$

$y=-5$

Therefore, the solution of our given system of equations would be $(-2,-5)$ and option A is the correct choice.

7 0

3 years ago

Read 2 more answers

Help with this please!

slega [8]

Hello,

No, this is NOT a proportional relationship.

Have a great day/night and stay safe! :)

8 0

3 years ago

Read 2 more answers

Verdich [7]

Answer:

C

Step-by-step explanation:

The elevati0on of sea level is 0 km and the elevation of the summit is 10 km

4 0

4 years ago

Subtract. Write your answer in simplest form.<br> 5/- 10/5

tigry1 [53]

Answer:

-1/10

Step-by-step explanation:

(5/(-10))/5 = -(5/10)/5 = 1/10

(Hopefully this helped you out!)

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3 years ago

Write an equation of a linear function with a slope of -3 and y intercept of (0,-7)

just olya [345]

Y= -3x-7
my work is attached :)

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3 years ago