5x – 4y = 9 x - 2y = 3 System of equation

Mathematics

1 answer:

padilas [110]3 years ago

3 0

Answer:

{x,y}={5,4} x is =5 y= to 4

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Which of the following rules could represent the function shown in the table?

kvasek [131]

ANSWER

The rule is given by the relation,

$y = 2x + 1$

EXPLANATION

We need to check and see if there is a constant difference between the y-values.

$1 - - 1 = 2 = 3 - 1$

We can see that, there is a constant difference of 2.

This means that the table represents a linear relationship.

Let the rule be of the form,
$y = mx + c$

Then the points in the table should satisfy the above rule.

So let us plug in

$(0,1)$

This implies that,

$1 =m (0) + c$

$1 = 0 + c$

$c = 1$

Our rule now becomes,

$y = mx + 1 - - (1)$

We again plug in another point say, (-1,-1) in to equation (1) to get,

$- 1 = m( - 1) + 1$

we solve for m now to obtain,

$- m=-1-1$

$- m = - 2$

$m = 2$
We now substitute back in to equation (1) to get

$y = 2x + 1$

5 0

3 years ago

Read 2 more answers

Plz help will choose brainliest provide an explanation.

nika2105 [10]

Answer:

I wanna say b

Step-by-step explanation:

I'm gonna say b because u would think since they've paid $13, and it sells for $22, u would add that on the price, which in my opinion would be x + 13 = 22

7 0

3 years ago

Factor this expression and show the steps<br><br>12x^2+14x-6<br>

Minchanka [31]

$\boxed{\bold{2\left(3x-1\right)\left(2x+3\right)}}$