The answer is a.
Substitute (-2,1) and (1,10) into each answer. Only a is correct because you will get -7 from both points.
You should ender 0.5 for a half note, 0.25 for a quater note, 0.125 for a eigth note, 0.0625 for a sixteenth note.
1.50y(2)+2.00x=20
Now use the quadratic formula to solve
Step-by-step explanation:

Now , divide both side by the same number...

