12. Which equation below satisfies the ordered pair (2, 7)? A. 2x + y = 11 B. x + 2y = 12 C. 2x - y = 5 D. x + y = 10 '* B

13. What will be the value of B in the equation 3x + By = 15 if x = 1 and y = 2 ? A. 6 B-6 C. 3 D.-3

14. What is the slope of the equation 12x - 4y = 20? A. - 3 B. 3 C.-4 D.4
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