Show that the system has no solution.
x + 2y = -4
y = -1/2x - 4

Step-by-step explanation:

TO show that this system has no solution, use the y value in the second equation and put it in for y in the first. Then solve.

x + 2y = -4

x + 2(-1/2x - 4) = -4

x  - x - 8 = -4

-8 = -4

Because this is an incorrect statement, we can tell there is no solution.

3.how is solving radical equations different than solving linear equations?

step-by-step explanation:

step-by-step explanation:

i found the koficent of the linear function and i foun c acordind to the strict formula y=kx+c and then i took 2 as an x and replacet it on the formula i found and then foun the y