Can someone me with these 2 questions and you?

What values of c and d make the equation true?

Pls will give brainliest and all p.s u can zoom in if u cant see plss

In which quadrant does the point lie? write the coordinates of the point. a. quadrant ii; (–2, –4) b. quadrant iii; (2, 4) c. quadrant iii; (–2, –4) d. quadrant iv; (–4, –2)