# Determine whether the given function is linear or nonlinear. If the function is nonlinear, explain why. [Hint:Recall that a linear function is of the form f (x1; : : : ; xn) = c1x1 + + cnxn where c1; : : : ; cn are constants.](a) f (x; y) = x + 2y(b) g(x1; x2; x3) = cos(x1 + x2 + x3)(c) h(x1; x2; x3; x4) = 6x1 45 x2 + 178 x3 x4(d) k(x1; : : : ; xn) = 3(x1 + + xn 1)(e) f (x1; x2) = x21 x1x2

Question
36 views

Determine whether the given function is linear or nonlinear. If the function is nonlinear, explain why. [Hint:

Recall that a linear function is of the form f (x1; : : : ; xn) = c1x1 + + cnxn where c1; : : : ; cn are constants.]

(a) f (x; y) = x + 2y

(b) g(x1; x2; x3) = cos(x1 + x2 + x3)

(c) h(x1; x2; x3; x4) = 6x1 45 x2 + 178 x3 x4

(d) k(x1; : : : ; xn) = 3(x1 + + xn 1)

(e) f (x1; x2) = x21 x1x2

check_circle

Step 1

Thank you for the question, since we are entitled to answer up to 3 sub-parts, we’ll answer the first 3 as you have not mentioned the sub-parts you need help with. Please resubmit the question and specify the other sub-parts you’d like to get answered.

Since, a linear function is of the form as shown follows:

Step 2

For sub-part (a)

We determine its linearity as follows:

Step 3

### Want to see the full answer?

See Solution

#### Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in

### Math 