Using the graphing function on your calculator, find the solution to the system of equations shown below.
Зу- 3x = -9
4 - 4x=-12
A. x = 4, y=-4
B. No solution
C. x = 3, y=-3
D. More than 1 solution
SUBMIT

the one below it is a function

the diagram shows you   triangle def with de=4, df=9 and de≠df≠ef.

the sum of the lengths of two triangles' sides are always greater than the length of the third side:

substitute sides lengths:

then 5< ef< 13 (option 3 is true).

def is a scalene triangle with all sides of different lengths (option 5 is true, option 2 is false).

answer: correct choices are 1, 3 and 5