Step-by-step explanation:
x+x+10+50=180
2x+60=180
2x=180-60
2x=120
x=120/2
x=60
A>0 so function rises
b=-1 so for x=0 ⇒ y<-1
we look for y that is above the line
so answer is the last <span>graph.</span>
"Non nobis Domine, non nobis, sed Nomini tuo da gloriam."
<span>Regards M.Y.</span>
The method that is not correct is brandon's method.
There are two opposite pairs and I am not sure if this is a select all question.
But here are the following:
B) C and F are pairs. That is -4 and 4
D) A and H are pairs. That is -8 and 8
Hope this helps!