The equation of a linear function: y = mx + b
x = y - 3 → y - 3 = x add 3 to both sides
y = x + 3 it's a linear function!
y = x³ + 2 NOT, because we have x³
y = 6x² NOT, because we have x²
y = 2/(3x) NOT, because x is in denominator.
The function which is a linear function is:
A function is said to be linear if it is expressed in the form of:
where a and b are real numbers.
This expression could also be written by:
since, on matching this expression to the general linear function we have:
a=1 and b=3
Hence, we get that the given function is linear.
Since, the power of x is 3.
This means that the given function is a cubic function and not a linear function.
The power of x is 2.
This means that the given function is a quadratic function and not linear.
Here the power of x is -1.
Hence, the function is not linear.
the true ones are a b and d