Which equation shows y=−1/2x+4 in standard form?
a. 2x+y=8
b. x+2y=8
c. x+2y=-8
d. 2x-y=8

B. x+2y=8

Explanation:

The original equation is:

The problem asks us to convert the equation in the standard form, so in the form

with a,b and c being integers.

In order to do that, first of all let's bring on the same side both x and y:

Now we want the coefficient in front of x to be an integer, so let's multiply each term by 2, and we get

and this corresponds to option B.

y= -

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1