Is (-2,-1) a solution to the system
-2x+5y=-1
4x-2y=-6

Step-by-step explanation:

-2x + 5y = -1 (1)

4x -2y = -6 (2)

Substituting x = -2 and y= -1 in the first equation.

It becomes; -2 (-2) + 5(-1)

= 4 -5

= -1 (SATISFIED)

FOR THE SECOND EQUATION:

4x - 2y = -6

Substitute x = -2; y = -1

The equation becomes:

4(-2) - 2(-1)

= -8 +2

= -6 (SATISFIED)

IT THEREFORE MEANS THAT (-2. -1) IS A SOLUTION TO THE SYSTEM.

Hope this helps!

step-by-step explanation:

from the graph attached below:

domain of graph is the value of x for which the given function profit function p(x) is defined.

(a) the domain represents the number of years for which the outlet will earn a profit.

range of profit function defines the lowest to highest value of profit earned.

(b) the range of this function is (0 , 160 ). for this function, the range represents the outlet's profit earned.