Do both as equation it will make it easier for her
Since EF=FG, you can set 6x - 10 = to 3x + 11

Then add like terms

so,

Now you can divide by 3 to get

:)
then put it back into


so,
(-2,4), (2,5)
Slope equation : (y₂-y₁) / (x₂-x₁)
Plug in the values.
m = slope
m = (5-4) / (2 + 2)
Simplify.
m = 1/4
So, your slope is 1/4
~Hope I helped!~