(1/2,-1/2)
You have to plug in the x point into the equation and the solution to that must equal your y point the only one that works for this is (1/2,-1/2).
-1/2=3(1/2)-2
-1/2=3/2-2
-1/2=-1/2. Works
-1/2=-(1/2)
-1/2=-1/2. Works
Hope this helps!
Step-by-step explanation:
L.H.S=(1-cosB)(1+cosB)
=(1-cos^2B). {using (a+b) (a-b)=(a^2-b^2)in second step}
=sin^2B
=1/cosec^2B
Therefore,L.H.S=R.H.S proved
First, find out his wage
15 hours×$9= $135
Next find his commission
$7000×3.5%
=7000×0.035
=$245
Finally, add these together
$135+$245
=$380
He will make $380 selling electronics per week
