Question

(4,?) is on the line 8x - 3y = -10. Find the other half o the coordinate

Answer 1

(4, ?) is on 8x - 3y = -10

The ? is the missing y coordinate. (4, y) satisfies 8x - 3y = -10

8x - 3y = -10. From point (4, y), we would replace x = 4 in the equation below. y remains the unknown.

8*4 - 3y = -10

32 - 3y = -10

-3y = -10 - 32

-3y = - 42

y = -42/-3

y = 14

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