<PRE><B>Question 204789</B>
Write the equation of the line that contains the points (2, 2) and (-3, 12).
Here is part of the answer. Can you identify the missing part?
y = -2x + ___ 
Let  the missing part = b
y = -2x + b
Substitute for x and y using the 1st given coordinate (2, 2)
2 = -2(2) + b
2 = -4 + b
2 + 4 = b
b = 6
:
the equation y = -2x + 6
:
Check this using the 2nd coordinate (-3, 12)
12 = -2(-3) + 6
12 = +6 + 6</PRE>