Respuesta :
Answer:
Answer: 1. Option B
2. Option D
3. Linear
Step-by-step explanation:
1. In this question coordinates of the points have been given and we have to describe the the function as linear or nonlinear.
As we know for a linear function there should and a constant difference in x and y coordinates of the points given.
Our points are A(-3,-9) B(-1,1) C(0,0) D(1,1) E(3,9)
Now difference in x coordinates of A and B is = (-3)-(-1) = -2
Difference in x coordinates of B and C = (-1)-(0) = -1
This clearly shows that the difference in x coordinates of A,B,C,D,E is not constant.Therefore the function described by these points is non linear.
2. Similarly in this part we find option D in which the points given are (0,1) (1,2) (2,5) (3,10).
In this set of points difference in x coordinates is 1 that is constant but difference in y coordinates is not constant. so the unction is non linear. So option D is the set of non linear ordered pairs.
3. In this part of the question function is y=3x-5
By putting the values of x as 1,2,3( with a constant difference 1) we get the value of y as -2,1,4 which show a common difference of 3 which is constant. Therefore the function is linear.