Question

Which of the following is a linear equation?
Question 2 options:
2y = -3x2 - 4x + 10

2xy = 10

2y = -3x + 10

2y = |-3x + 10|

Answer 1

linear implies the equation is a line. do you what the equation of a line looks like? It will not have squares, absolute values, or x*y terms.

Answer 2

so is it answer choice 2

Answer 3

choice two has a x*y term. so it is not linear. linear means ax+by+c=0 where a,b,c are numbers. Notice x and y are variables to the first power. You can rearrange the terms, for example: c+ax= -by