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Answers by Andy Z.

Help me understand (answer)

When we are given an equation we can change its form by doing identical operations on both sides of the operation. So if we are given the equation 9/6 = x10 we can divide both sides of the equation by 10. Thus we get 9/6 divided by 10 = x10 divided by 10. The left side of the equation simplifies...

How do you label points where the line crosses the axes? (answer)

The equation we are working with is y = -x - 4 This equation is in slope-intercept form (y = mx + b), and m = -1 and b = -4. This means that the slope is -1 and that the y-intercept is -4. Thus, we know that the line is downward sloping, which means that it looks more like a backslash (\)...

What's f(x, -x^2, x^2)? (answer)

The information that is given is: f(x, y, z)=(z^2+x^2-y)/(2x^2+y) AND f(x, -x^2, x^2). This is saying that f is a function that is dependent on variables x, y, and z and is defined as (z2 + x2 - y)/(2x2 + y). Furthermore the variables y and z are defined in terms of the variable...

solving negative exponent simplification (answer)

x-2 - 1/x - 1 ______ given = (1/x2) - (1/x) - (1) ______ x-2 can be written as 1/x2 and use parentheses to separate each term = (1/x2) - (x/x2) - (x2/x2) ______ LCD is x2 = (1-x-x2)/(x2) ______ combine terms into single fraction = (-x2-x+1)/(x2) ______ rearrange terms in...