Is this table proportional or non-proportional?
1 answer:
Answer:
Proportional
Step-by-step explanation:
Proportional functions can be written as , where
is some constant of proportionality. Plugging in (x,y) pair into this function will yield a constant of proportionally of
and since this constant is maintained through all the coordinate pairs in the table, the table is proportional.
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Answer:
B
Step-by-step explanation:
First, let's rearrange the given equation into something more recognizable. If we add 13 to both sides, we now have the polynomial . We can now use the quadratic formula to solve.
Remember that the quadratic formula is
Substitute the numbers from the equation into the formula.
Simplify:
Here, I'm going to assume that there was a mistype in option B because if we divide out the 2 we end up with .
Hope this helps!