Question

Classify the expression: −2x Quadratic expression Linear expression Cubic expression Exponential expression

Answer 1

Linear expression

Explanation:

i got it right on the test.

Answer 2

The given equation is linear equation.

Explanation:

The equation is -2x .

Then definations are as follows,

Linear equations = of form
`a(x) + b` (max power of x is 1)

quadratic equations = of form
`ax^(2) + bx + c` (max power of 2)

cubic equations = of form
`ax^(3) + bx^(2)  + cx + d` (max power of 3)

exponential functions = of form
`ae^(x)` ,

where a,b,c and d are constants.

In above case, a = -2 and x has max power of 1.

Thus, equation is linear.