Answer:
40x + 6
Step-by-step explanation:
6 + 4x (3 + 7)
6 + 12x + 28x
40x + 6
<span>get their dot product, if the dot product is 0, then they're orthogonal (perpendicular).
also keep in mind that, if two vectors bear the same slope, namely <a,b> and <c,d> and the simplified slope b/a is the same value as d/c, then they're parallel vectors.</span>

Find f(-5) by substituting x = -5 in the equation.

Therefore, the answer is f(-5) = 16