B. (-1,-6) , C. (7,0) , D. (11,3) ;
One way of knowing the correct answers, we substitute the ordered pairs to the function and see whether it would make the function true. 3x – 4y = 21
A. (−3, 3) 3(-3) – 4(3) = 21 -21 = 21 ---------------> not equal
B. (−1, −6) 3(-1) – 4(-6) = 21 21 = 21 ---------------> equal C. (7, 0) 3(7) – 4(0) = 21 21 = 21 ---------------> equal D. (11, 3) 3(11) – 4(3) = 21 21 = 21 ---------------> equal
The solutions to the equation 3 x − 4 y = 21 are the ordered pairs B ( − 1 , − 6 ) , C ( 7 , 0 ) , and D ( 11 , 3 ) . The ordered pair A ( − 3 , 3 ) does not satisfy the equation. Only the pairs from options B, C, and D are valid solutions.
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Jawaban:6500 gram setara dengan 65 kg