Question

Y = -3x + 10 y = 4x - 11 into coordinates

Answer 1

(x, , y) = ( 3 , 1 )

Explanation:

y = -3x + 10

I. e 3x + y = 10. .........[eq. 1]

y = 4x - 11

I. e - 4x + y = -11 ......[eq. 2]

By subtracting eq. 2] from [eq. 1], we get,

3 x + y = 10

_

- 4x + y = -11

(+) (-) (+)

---------------------

7x. = 21

x = 21 / 7

x = 3

by substituting x = 3 in y = - 3x + 10

y = -3 (3) + 10

y = -9 +10

y = 1