Question

What is the result of solving this equation for x?

y
−
b
=
m
(
x
−
a
)

A.
x
=
−
a
+
m
(
y
−
b
)

B.
x
=
a
+
m
(
y
−
b
)

C.
x
=
−
a
+
y
−
b
m

D.
x
=
a
+
y
−
b
m

Answer 1

y − b = m(x − a)
Divide both sides by m: (y − b)/m = x − a
Add a: x = a + (y − b)/m

So the correct choice is D.