For each question, decide whether or not it is a function. PLEASE HELP ASAP ALEKES ALGEBRA 2 MATH ILL GIVE BRAINLIEST

Your answers are right because the x's can not repeat

so 1.it is a function

2.it is a function

3.it is not a function bc "d" and "m" both repeat 2 times

4.it is not a function bc 2 repeats 2 times

Hope this helps

Have a great day/night

Feel free to ask any questions  

the correct answer is d

hope this