Which of the following is a linear function?

y = 3x^2
y = 1 over 3x
y = x^3 + 5
2 over 3x = y − 1

y= 1 over 3x

Step-by-step explanation:

any linear function graphs a straight line and if you need multiple answers then 2 over 3x = y- 1 is also a lineat function

y= 1 over 3x

Step-by-step explanation:

I thought it was 2 over 3x but it was wrong so it has to be y= 1 over 3x

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.

step-by-step explanation:

the true ones are a b and d