Coefficient: A number that multiplies a variable.

Find a coefficient of x in - 7x, and a coefficient of y in y.

coefficient of x is - 7

coefficient of y is 1

Step-by-step explanation:

The first expression is - 7x.

A Coefficient is any constant which is multiplied with any variable in an expression.

So, from this definition, we can see that - 7 is multiplied with the variable x.

So, the coefficient of x in - 7x is - 7.

The second expression is y.

We can rewrite this as 1y

We can see that 1 is multiplied with the variable y

Hence, the coefficient y in y is 1.

The coefficient of X would be the - 7 because you are multiplying x by - 7.

Because Y is by itself, there is no coefficient, but some people would say the coefficient is 1 because any number / variable multiplied by one remains the same.