For the graph of y = -8 the line is horizontal, which means the slope = 0. A parallel line has the same slope so one equation could be y = 2. A perpendicular line has an opposite slope so since our slope = 0 the opposite of that slope is

which a line that is perpendicular to y = -8 could be x = -3. Also notice that these two lines form a 90 degree angle.
Answer:
84 dollars, A
Step-by-step explanation:
420/5 = 84
The value of (f-g)(x) is x + 14.
<h3>What is Function?</h3>
A function is a process or a relation that associates each element 'a' of a non-empty set A , at least to a single element 'b' of another non-empty set B.
Here, given function;
f(x) = 3x + 10 and g(x) = 2x - 4
Now,
(f - g)(x) = f(x) - g(x)
= (3x + 10) - (2x - 4)
= 3x + 10 - 2x + 4
= (3x - 2x) + (10 + 4)
(f - g)(x) = x + 14
Thus, the value of (f-g)(x) is x + 14.
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1x + 4 (-×+3) = 6
1× -4× + 12 = 6
-3× = -6
× = 2
2× +2y = 6
× - y = 3
multiply second equation by 2x - 2y = 6
now add equations
4x = 12 so x = 3. substitute 3 - y = 3 so y is 0. check in first equation 2×3 + 2×0 = 6. 6+0= 6