slope = (6 - 1)/(-2 - 1) = 5/-3 = -5/3
Equation
y - 6 = -5/3 (x + 2)
Hope it helps
Answer: the second and the third one are right
Step-by-step explanation:
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Answer:
B.x2-4x=18
x2-4x+4=18+4
Step-by-step explanation:
When you complete the square your quadratic equation must be written in the standard form which is ax^2+bx+c.
First you are going to want to move your c term to the right (in this case move -18 to the right by adding 18 to both sides). This will get you x^2-4x=18. Now you are going to need to complete the square. To complete the square you divide the number in the bx term (in this case -4) by 2 and then square it. (-2^2=4 since a negative times a negative equals a positive). Now that you have 4 you are going to add it to both sides to get x2-4x+4=18+4.
Answer:
an = 6 (1/4)^(n-1)
Step-by-step explanation:
We're given the first term, a₁ = 6.
The common ratio is a term aₓ divided by the previous term aₓ₋₁.
aₓ = 1/4 aₓ₋₁
aₓ / aₓ₋₁ = 1/4
r = 1/4
Therefore:
an = 6 (1/4)^(n-1)
Your answer is correct, good job!
