Question

Choose the system of equations which matches the following graph:

2x - 5y = 10
4x - 10y = 20



2x + 5y = 10
4x + 10y = 20



2x + 5y = 10
4x - 10y = 20



2x - 5y = 10
4x + 10y = 20

(could someone explain how I can solve this?)

Answer 1

The line in the graph passes through the points (5,0) and (0,2).

Just put these points in each equation for x and y and if they satisfies the equations, then it matches the graph...

Answer 2

y= y2-y1 / x2 - x1 ???

Answer 3

I got 5/-2 but isn't there another equation im suppose to do ? I still dont understand .

Answer 4

@skullpatrol