Question

Is (0,-1) a solution of -10x + 4y ≥ -4?

Please show your work!

Answer 1

At (x,y)=(0,-1)

-10x + 4y = -10(0) + 4(-1) = -4

Does that make the statement true? Is -4 ≥ -4? It's equal, so yes.

Answer: YES

Answer 2

we can plug point (0,-1) into equality

`-10x+4y \geq -4`

we can plug

x=0 and y=-1

and we get

`-10*0+4*-1 \geq -4`

`0-4 \geq -4`

`-4 \geq -4`

we know that

-4 is equal to -4

so, it satisfies the inequality........Answer