Which expression can be used to determine the slope of the line that passes through the points (–7, 3) and (1, –9)?
2 answers:
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Answer:
D) c - 2 = 25 + c + 10√c
Step-by-step explanation:
The given equation is
Taking square on both sides, we get
Here we used ( a+ b)^2 = a^2 + b^2 + 2ab formula.
c - 2 = 5^2 + (√c)^2 + 2(5)√c
c - 2 = 25 + c +10√c
Answer: D) c - 2 = 25 + c + 10√c
Thank you.
Answer:
No real solutions;
Step-by-step explanation:
The easiest method to solve an algebraic equation is to use inverse operations. This applies to the given equation;
- Take the square root of both sides
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As one can see, the right side is a negative number. However, one cannot take the square root of a negative number and get a real result. Therefore, one must use imaginary numbers. Remember, the imaginary unit () represents (
).
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- Add (3) to undo the (-3)
- Divide by (2) to remove the coefficient of (2x)
÷ ÷
Simplify,