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1. Which ordered pair is the best estimate of the solution of the system? (Points : 1) A. (2.1, –0.8) B. (2.1, –0.2) C. (2.7, –0.8) D. (2.7, –0.2)
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1. Which ordered pair is the best estimate of the solution of the system?

(Points : 1)
A. (2.1, –0.8)
B. (2.1, –0.2)
C. (2.7, –0.8)
D. (2.7, –0.2)

1. Which ordered pair is the best estimate of the solution of the system? (Points-example-1
User Yshahak
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1 Answer

4 votes
1x + 5y = -2 ⇒ 2x + 10y = -4
2x - 7y = 10 ⇒ 2x - 7y = 10
17y = -14
17 17
y = -¹⁴/₁₇
x + 5(-¹⁴/₁₇) = -2
x - 4¹²/₁₇ = -2
+ 4¹²/₁₇ + 4¹²/₁₇
 x = 2¹²/₁₇
(x, y) = (2¹²/₁₇, -¹⁴/₁₇)
User Shiraz
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8.1k points
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