If f(x) = |x - 4| + 5, find f(1)
2 answers:
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Answer:
<u>Option b. (x = 3, y = 20, z = -14)</u>
Step-by-step explanation:
Given:
2x + 2y + 3z = 4
5x + 3y + 5z = 5
3x + 4y + 6z = 5
Solve using Cramer’s rule
∴
∴A =
Ax =
Ay =
Az =
∴ x = Ax/A = -3/-1 = 3
y = Ay/A = -20/-1 = 20
z = Az/A = 14/-1 = -14
<u>So, the answer is option b. (x = 3, y = 20, z = -14)</u>
A function is a relation that associates each element x of a set X, to a single element y of another set Y.
Circle is not a function of x. For x = 0 we have y = -7 and y = 7.
