50 POINTS! QUICKLY Are the pairs of variables x and y the solutions to the equation x^2–2y=7?
2 answers:
Hi there!
We are given the equation:
x² - 2y = 7
To verify if each ordered pair is apart of the function, we can plug in their respective x and y values:
1. (5)² - 2(8) = 7
25 - 16 = 9 ≠ 7. This is NOT correct.
2. (-1)² - 2(-3) = 7
1 + 6 = 7. This is correct.
3. (-4)² - 2(-11.5) = 7
16 + 23 = 39 ≠ 7. This is NOT correct.
4. (1.2)² - 2(-2.78) = 7
1.44 +5.56 = 7. This is correct.
Thus, only 1 and 4 are the correct answers.
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Answer:
Step-by-step explanation:
what is... a LIKE TERM????
a like term is a term that you can easily combine in an algebra equation. you can combine them because they share the same terms. FOR EXAMPLE.... YOU CAN COMBINE THESE ON THE LEFT SIDE OF THE EQUAL SIGN:
to
so for a, b, and c... its basically any number that doesnt have a variable attached to it. THEY COULD BE ANYTHING. like 1, -2, and 3. but for d... its a different story.... because there is so a like term could be 2
notice that i wrote -2 for b... well theoretically it doesnt even have to be negative because you can combine a negative integer with a positive integer! i just made it negative for convenience....