Wednesday 7 December 2016

ALGEBRA 3


If 7x + 5y -9 = 0; find x-intercept.

Solution

x-intercept is when y=0.

7x + 5y -9 = 0

7x + 5(0) - 9 = 0

7x - 9 = 0

7x = 0+ 9

7x = 9
7      7

x= 9/7

Hence x= 9/7


TRY THIS………..


If 8x - 2y - 17 = 0; find x-intercept.

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