HELP PLZ WILL MAKE BRAINLIEST​

Which expression is equivalent to sq-80

3x + 4y = 5 x- 3y = -7 solve by substitution

Which of the following best describes the graph below? + + 2 + 3 + 4 1 o a. it is not a function. o b. it is a one-to-one function. o c. it is a many-to-one function. o d. it is a function, but it is not one-to-one.