What is the equation of the line with a slope of −
1
4
and a y-intercept of –3?

A.
y
=
−
3
x
+
1
4

B.
y
=
−
1
4
x
+
3

C.
y
=
−
1
4
x
−
3

D.
y
=
−
3
x
−
1
4

The price of a visit to the dentist is \$50$50. if the dentist fills any cavities, an additional charge of \$100$100 per cavity gets added to the bill. if the dentist finds nn cavities, what will the cost of the visit be?