The question makes no sense. -620 is not a coordinate
The vertex of a triangle is the point where two or more sides of the triangle intersect. In the case of triangle TIF, the vertex would be the point where the sides TI and IF intersect. To determine the exact coordinates of the vertex, you would need the coordinates of points T, I, and F and then use the equations of the lines containing the sides to find their point of intersection.
By differentiating the answer and plugging in the x value along the curve, you are finding the exact slope of the curve at that point. In effect, this would be the slope of the tangent line, as a tangent line only intersects another at one point. To find the equation of a tangent line to a curve, use the point slope form (y-y1)=m(x-x1), m being the slope. Use the differential to find the slope and use the point on the curve to plug in for (x1, y1).
subtracting
You plot the x value in conjuction to the y value. For example, if 6 is the x value and 6 is also the y-value you would find it on the x-values line and search for 6 on the y-values line and plot the point where the lines intersect. The coordinates or the point would be (6,6).
since you know of one points and the halfway point between the other point. just multiply the halfway point by 2 and this is the total distance between the two points.
It would help to know "... the point of intersection of a parallelogram" and what!
On the inside of a bend
Google!
Draw a vertical line through the triple point.
On the inside of a bend.
Situation Unit
If you want to find the initial value of an exponential, which point would you find on the graph?
its when 3 girls are born from the same mother and or father
You would find these coordinates in South America. Specifically, they point to a location in Brazil near the city of Campo Grande.
Go to www.antipodemap.com/ you can find the opposite point on earth from anywhere using google maps. You can even find the opposite point on earth to your own home. My guess is that it would be somewhere in the South Indian ocean.
It would depend on what you wanted to find out, but see the link below for a good starting point.
libraries and book store.