3x – 7y=16<span> ... Grafik dari persamaan </span>linear dua variabel<span>berbentuk garis luru
s, seperti yang ... SPLDV dengan </span>metode substitusi<span>, perhatikan contoh </span>berikut<span>. .... Jadi solusi </span>sistem persamaan<span> linier di atas adalah </span>x<span> = 2, y = </span>3<span>, z = 4. .... </span>8<span>. Berapakah nilai 6 − 2 jika </span><span> merupakan penyelesaian dari ...</span>
Combination and permutation are two different things. In combination, the number of possible ways considered do not include the order of the elements as a factor. On the other hand, the order of elements in permutation is important. Using the calculator, 5C4 is equal to C.5
Answer:
Step-by-step explanation:
f(x) is like y in a linear equation. There is one major difference. F(x) tells you what to substitute on the right every time you see an x.
f(a) = -3a + 7
f(b) = -3b + 7
For this question a and b have values. Now work with the right side only. This is the quickest way to get the answer, but it is only marginally correct.
f(a) = -3(-8) + 7 = 24 + 7 = 31
f(b) = -3(7) + 7 = -21 + 7 = - 14
f(a) + f(b) = 31 - 14 = 17
f(a) - f(b) = 31 - (-14) = 31 + 14 = 45
