Is my answer right. Or should I change my answer so I can get a higher grade

Answer First choice NO

Step-by-step explanation:

Direct Relationship

Two variables x and y have a direct relationship if the function that relates them is written as:

y = kx

Where k is the constant of proportionality.

The graph of such function is a straight line passing through the origin (0,0).

The graph does not show a direct relationship because it has the shape of a curve, not a straight line.

Answer First choice NO

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,