Question

Tell whether the point lies on the graph of the line 2x+6y=26

A. (-8,7) YES/NO?
B. (-1,4) YES/NO?
C. (2,5) YES/NO?
D. (4,3) YES/NO?
E. (16,1) YES/NO?

Answer 1

Answer: Yes, No, No, Yes, No

Explanation:

I think Graphing is the best way to tackle this. But I prefer algebra:

A) 2(-8) + 6(7) = 26

-16 + 42 = 26

26 = 26

The answer for A is Yes. I wont show work for the others, i think its pretty intuitive, (just substitute the coordinates for x and y, and check if the resulting statement is true)

B. No

C. No

D. Yes

E. No