Answer:
The correct option is (D)
.
Step-by-step explanation:
The two-point form for the equation of straight line is:

The two points provided are:
A = (5, 3)
B = (12, 7)
Compute the equation of the trend line as follows:

Thus, the equation of the trend line is
.
The correct option is (D).
First plot the points. Let’s just use the first graph. When you have done that. Draw a triangle. Find the right angle and look at what line is across from that. That is the hypotenuse. That is the length that you are trying to find. So you have to do your equation: a^2 + b^2 = c^2. A and B have to be the length of the other 2 lines(just count it). When you have done that repack you a and b with your #s. And what ever is equal to you c. Then that is you answer. (Im sorry if this was confusing)
Answer:
3cm and 7cm
Step-by-step explanation:
The length is 7cm.
The width is 3cm.
Area = Length × Width = 7cm × 3cm = 21cm²