Question

Which equation is not a linear equation?

a)

x = -5


b)

–4v + 2w = 7


c)

x4= y

d)

2/x + 3/y = 5

Answer 1

2/x + 3/y = 5

Explanation:

A linear equation refers to any equation that can be written in the form;

ax+b=0 or y - mx -c = 0

The graph of a linear equation will always be a straight line; Vertical, horizontal or with a given degree of steepness (slope).

All the equations given are linear, except the last equation;

2/x + 3/y = 5. The exponents of the variables x and y is not 1 hence the equation is non-linear. Find the graph attached;