Given the relation y = 3x2 + 1, if the input is 4, what is the output? (4 points)
13
48
49
145

Option C is correct.

The output is 49.

Explanation:

Given the relation:                   ....[1]

A function is a relation in that each input has only one output.

In the given relation,  y is a function of x

for input x=4 ,

Substitute the value of x =4 in equation [1];

or

therefore, for the given input the output is 49.

the equation for this situation is y=122+45. to solve the equation you would add 45 and 122 to get a total of 167lbs. in conclusion, grace's weight eight weeks ago was 167lbs.  

answer: the answer is 127 degrees