Autonomous investment is indicated by the intercept. 1  An Induced Slope: The slope of the investment equation (f) measures the change in investment resulting from a change in income. If income changes by $1, then investment changes by $f.
24 to 48 Hours. You should wait at least 24 hours before grouting the tiles. You may notice that the edges of the thinset or the thinset showing through the grout lines looks dry. Don't be fooled by this. The thinset under the tiles isn't receiving as much air as the edges and is therefor not fully cured.
How long do you have to wait to walk on tile before you lay it? We are going to have ceramic tile put down in our kitchen, and I was wandering after you lay it, how long do you have to wait until you can walk on it? Update: I meant after you lay it, sorry.