Can someone with these to problems.. you!

PEMDAS

The E stands for exponent, but also powers and square roots.

1. -2√9+4. The square root of 9 is 3. Because the -2 is outside the square root, you have to multiply it by the answer. -2*3=-6. -6+4=-2. The answer to #1 is -2.

2. Doing the same thing you did in #1 in question #2, you get the answer is 29.

the direct variation says that:

then the equation is of the form is given by:

            where k is the constant variation.

from the given table:

consider any value of x and m(x)=y

x = 2 and m(x)=y = 3

substitute these value in [1]; we have;

divide both sides by 2 we get;

⇒

check:

put x = -1 and m(x) = -1.5

substitute in the equation:

-1.5 = -1.5                   true

therefore, the function m(x) represents a direct variation

graph of this function as shown below:

∞ this is your sign