These statements are true:
<span>1. The first number in an ordered pair is the x-coordinate.
2. The second number in an ordered pair is the y-coordinate.
3. The graph of a linear equation is usually a line.
</span><span>5. Ordered pairs are graphed as points in the coordinate plane.
</span>
Answer:
50 is the sum
Step-by-step explanation:
-10+20=10
10+-40=-30
-30+80=50
Maybe ask google for help