Answer:
#1: (0,0)
#2: (0,-3)
#3: (0,1)
#4: (0,1)
Explanation:
The y-intercept is the value of y when x equals 0.
So, we should plug 0 in for x, and solve for y.
For #1, we get 2y=4(0), so 2y=0, meaning that y=0, thus the y intercept is (0,0).
For #2, we get -2y=4(0)+6, so -2y=6. Dividing both sides by -2, we get y=-3, and the y-intercept is (0,-3).
For #3, plugging in x for 0, we get 2y-2=-(0), so 2y-2=0. We can add 2 to both sides, and divide both sides by 2, so we have y=1, and the y-intercept is (0,1)
For #4, we get -2y+2=2(0), so -2y+2=0. If we subtract 2 from both sides, then divide by -2, we get y=1, and the y-intercept is (0,1).