Question

36) Solve graphically. x +2y = 8, x+y=5​

Answer 1

Answer:

x=2, y=3

step by step explanation

x=2 y=3

(2+2×3)= 2×3=6

2+6=8

x=2 y=3

2+3=5

Answer 2

x = 2 and y = 3

GIVEN

Algebraic equation- x + 2y = 8

x + y = 5

TO FIND

To solve the above problem graphically.

SOLUTION

The above problem can be simply solved as follows;

Taking the equation x + 2y = 8 into consideration

Taking x = 0

0 + 2y = 8

y = 8/2 = 4

Substituting y = 0

x + 0 = 8;

x = 8

The two points are A(0,4) and B(8,0)

Taking x + y = 5

Substituting x = 0

y = 5

Substituting y = 0

x = 5

The two points are; C(0,5) and D(5,0)

Plotting the graph we get;

The cordinates of point of intersection are (2,3)

Hence, x = 2 and y = 3

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