Nicole C. answered • 09/09/12
Increase confidence in math and science, chemistry, algebra II
There are a couple of ways this could be answered depending on the prompt for the question
Are they asking to solve for y in terms of x?
-10x - 5y + 1 = 0
+10x +10x
-5y + 1 = 10x
- 1 - 1
-5y = 10x - 1
/(-5) /(-5)
y = (10x - 1)/(-5) OR y = -2x + (1/5)
Are they asking you to graph?
y = -2x + (1/5)
Has a slope of -2 and a y-intercept of (1/5) [using slope-intercept form]
If you need to find the x and y intercepts, then plug zero in for one varriable and solve for the other.
-10x - 5y + 1 = 0
-10(0) - 5y + 1 = 0
-5y + 1 = 0
-5y = -1
y = 1/5 written as a point (0, 1/5)
-10x - 5y + 1 = 0
-10x - 5(0) + 1 = 0
-10x + 1 = 0
-10x = -1
x = 1/10 written as a point (1/10, 0)
