The y-intercept is (0, -8)
if you set the equation to slope intercept format you get
y=-2x-8
Recall that a slope-intercept form of a linear equation is

Rearrange the given so that it follows that slope intercept form

The y-intercept is the value for which the linear function crosses the y-axis, this is when the value of x is equal to zero. The ordered pair therefore of the y-intercept is (0,-1).
B. Triangle B and Triangle D
Triangle A has all equal sides and Triangle C is a right triangle.
Answer:
79.6875 % If you can round, please do.
Step-by-step explanation:
If you would like to solve the system of linear equations, you can do this using the following steps:
2x - y = -1 ... y = 2x + 1
2x + y = -7 ... y = -7 - 2x
The correct result would be: y = 2x + 1, <span>2x + y = -7.</span>