Question

what is the y-intercept of the line whose equation is $y=-x-2$?
select one:
a. -1
b. 2
c. 1
d. -2

how many degrees do the angles of triangle contain?
select one:
a. 90
b. 270
c. 180
d. 360

Explanation:

Step1: Recall slope-intercept form

The slope-intercept form of a line is $y=mx+b$, where $b$ is the y-intercept.

Step2: Identify $b$ in given equation

For $y=-x-2$, rewrite as $y=-1x+(-2)$. Here, $b=-2$.

Step3: Recall triangle angle sum rule

The sum of interior angles of any triangle is a fixed value.

Step4: State the fixed angle sum

The sum equals $180^\circ$.

Answer:

1. d. -2
2. c. 180