Algebra

posted by Komal yaseen

5x-4y=10
2x+8y=4

1. Isaac

X = 2
Y = -2.5
Slope = 1.250

2. Henry

Eq1: 5x - 4y = 10.
Eq2: 2x + 8y = 4.
Multiply Eq1 by 2 and add the Eqs:

10x - 8y = 20.
+2x + 8y = 4.
Sum: 12x = 24,m X = 2.

In Eq2, replace x with 2:
2*2 + 8y = 4. Y = 0.

M1 = -A/B = -5/-4 = 1.25.
M2 = -2/8 = -0.25.

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