When a line is perpendicular to another line with a given slope, you can use the given slope of the original line to find the slope of the perpendicular line. All you need to do is flip the reciprocals. Since the slope of the given line is -1/8x, the slope of the perpendicular line would be 8x. Since there is only one line with a slope of 8x in the answer choices, your answer would be:
a. y=8x+13
Hope this helps!
Answer:
The scale of the drawing is 
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its areas is equal to the scale factor squared
Let
z ----> the scale factor
x ----> the area of an house on a scale drawing in square inches
y ---> the actual area of the house in square feet

we have


substitute

simplify

square root both sides

therefore
The scale of the drawing is 
Answer:
no
Step-by-step explanation:
Answer:
See below.
Step-by-step explanation:
The domain and range are correct.
The relation is a function because no x value is used more than once.