Classify the expression: 5x + 2.
a) linear expression
b) quadratic expression
c) cubic expression
d) quartic expression

Option: A. The given equation is a linear expression

Solution:

The linear expression is the expression whose highest degree is 1 after combining the degrees of all the terms in the expression.

Here in the problem the expression is + 2  which can also be written as,

We can see that the degree of term is 1 and the degree of term 2 is also 1

So, the highest degree of the given expression is =1

Hence, the equation is a linear expression.