Solve using elimination.
4x + y = -5
8x + 3y = -19
Plz I need help

(1, -9)

Step-by-step explanation:

4x + y = -5

8x + 3y = -19

If we have to use elimination, that means we're going to add or subtract these two whole equations by each other so that we can cancel out one of the variables.

I think that we could easily turn 4x into 8x if we multiply the top equation by 2.

4x + y = -5 ---> 8x + 2y = -10

Now put them next to each other, and subtract to get rid of the xs.

  8x + 2y = -10

-  8x + 3y = -19

  0x - y = -10 - -19

  -y = 9

   y = -9

Plug this back in to get x.

  4x + y = -5

  4x - 9 = -5

  4x = -5 - -9

  4x = 4

  x = 1

7

step-by-step explanation:

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.