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Answer: D) Both a relation and a function</h3>
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Explanation:
A relation is any set of (x,y) points usually with some rule tying them together. Though that rule doesn't have to be present. We could simply have a set of points. The set of points we are given is a relation.
A function occurs when we don't repeat the x value. Visually if we had two points stacked on top of each other, then we wouldn't have a function since it fails the vertical line test. A function happens when all x inputs leads to exactly one y output. If we had say { (-4,0), (2,-6), (-4,3) } then this wouldn't be a function since x = -4 repeats itself.
Since none of the x values repeat themselves in our given set, this means we have a function.
Side note: Any function is a relation, but not the other way around.
Answer:
x = -4 , x = -1
Explanation:
Multiply by x on both sides to get rid of fraction
x(x + 4/x) = x(-5)
x^2 + 4 = -5x
x^2 + 5x + 4 = 0
Factor
(x+4)(x+1) = 0
x = -4 , x = -1
Answer:
2 1/10 kg
Step-by-step explanation:
2 4/5 x 3/4
Make improper fraction
14/5 x 3/4 = 42/20
Reduce to 2 1/10
Answer:
yes
Step-by-step explanation:
There's no repeat number for x and y so yes it's function
Answer:
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