Answer:
Y=x
Step-by-step explanation:
The y and x values are the same
Yes, it depends on what kind of model
Answer:
In real life, a scale copy is often smaller than the original figure.
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
Slope intercept form: y = mx + b
y = -x + 7
x + y = 21
x + y = 21
-x -x
y = -x + 21
y = -x + 7
y = -x + 21
Parallel lines have the same slope. Here, our slope is -1
Therefore, our final answer is d.
Hope this helps!