12x+9300=78900
12x=69600
x=5800
x being her monthly salary
Sure I can help you.
First and foremost, your graph shows that the slope is 0 since the equation of this graph is y= 4. We can also say that whatever the input is, it will always give you the same output. Therefore the output is just the same all through out.
Hope this helps !
Photon
I'm attaching the solution.. feel free to ask if you have questions.. I basically did long division. Hope this helps.