Answer:
y + 5 = -2(x - 7)
Step-by-step explanation:
The slope of the line y = (1/2)x + 4 is 1/2. Any line perpendicular to this one will have a slope which is the negative reciprocal of 1/2: -2.
Using the point-slope form, the desired equation is:
y + 5 = -2(x - 7)
Answer:
3.88
Step-by-step explanation:

Answer:
-7
Step-by-step explanation:
-9 - (-2)
If there is a negative sign in front of a negative number in parenthesis, then that makes it a positive number.
-9 + 2 = -7