Question

Which of the following gives an example of a function that is not linear?(1 point)
Responses

y=16x+23
y equals Start Fraction 1 over 6 End Fraction x plus Start Fraction 2 over 3 End Fraction

2x+3y=16
2 x plus 3 y equals 16

y=x2−3x+2.25
y equals x squared minus 3 x plus 2.25

9x+3y−18=0

Answer 1

y = x^2 − 3x + 2.25

Reason: it contains an x^2 term (a quadratic), so it's not a linear function. The others can be written in the form y = mx + b.