When solving a system of equations graphically, when would you need to estimate the solution? explain.

see the explanation

Step-by-step explanation:

we know that

When solving a system of equations graphically, the solution is the intersection points both graphs.

so

You need to estimate the solution when:

a) both the x- and y-values for the intersection point are not integers.

b) the value of at least one coordinate is between integers.

c) the intersection point does not fall on a grid line.

i am thinking c. sorry if im wrong .

step-by-step explanation:

in simplified version   it would be x ≤-4

step-by-step explanation:

multiply each term in x ≤-4 by -1