Perimeter is all sides added up.
Area is sometimes length times width with four sided figures like a rectangle or a square and for like triangles it is base times height.
The first pair of statements is the best option. h(0) based on the given equation would be the square root of -3, which is an imaginary number. Also, w(0) should be 0, since if nobody is working on making wrenches, none can be made. This is despite the graph having a value at x = 0.
The second statement in the second pair is false, since 0 is not an imaginary number.
You can find the slope of an equation by looking at what number comes before x. Making the slope being -1/2 because that's the number that comes before x.