Part 1: (10 pts) Figure out a real life situation which involves Systems of linear equations. Then explain the situation in 4 to 5 sentences. (10 points)

Part 2: (35 pts)
a) Write the equations of the systems and define the unknown variables. (15 points)
b) Solve the above equations using elimination, substitution and graphing. Must use graph paper. Graphs must be accurate with clear scales and points. (18 points)
c) Identify whether the solutions are breaking points or not. Explain in 4 to 5 sentences. (2 points)

Part 3 (5pts)
Create table of values. Show your solution as part of a table of values. (5 points)

1/4 because there is 4 grades.

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.