Question

The following is a linear function in standard form: 3x + 4y = -12 Which of the following is NOT an equivalent form of this equation? A) 4y = -3x - 12 B) y = -x-3 C) x = -y- -4 D) y = -x-4if you answer please explain how, i'm so lost on this subject

Answer 1

D, y = -4/3x - 4.

Explanation:

To find out which equation is equivalent to 3x + 4y = -12, manipulate and/or rearrange the equation such that it gives you 3x + 4y = -12.

For D,

y = -4/3x - 4

Multiply 3 to the equation to get rid of the fraction.

3y = -4x - 12

Rearrange the terms.

3y + 4x = -12

Although the general equation is correct, the placement of the variables are incorrect. Thus, D is not equivalent to 3x + 4y = -12.

A, B and C are equivalent to 3x + 4y = -12 after being manipulated and/or rearranged.