y-intercept: -1/4
x-intercept: 1/5
5x-4y=1
-4y=-5x+1
y=5/4x+1/-4
5x-4y=1
5x=4y+1
x=4/5y+1/5
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6y 10+4y subtract 4y from each side 2y 10 divide both sides by 2 y = 5
To find the x-intercept for 5x - 4y = 18, plug in a 0 for the y value and solve for x. 5x - 4(0) = 18 5x = 18 x = 18/5 or 3.6 The line will hit the x-axis at (3.6,0)
x=3 y=9 7x + 4y =? (7 * 3) + (4 * 9) = 57 Remember always multiply/divide before you add/subtract
12-4y=y-3 (subtract 12 from both sides) -4y=y-15 (subtract y from both sides) -5y=-15 (multiply both sides by -1 to make them positive) 5y=15 (divide by 5) y=3
4y -2 = 6 4y = 6 + 2 4y = 8 y = 2