Answer:
7 decimal digits
Step-by-step explanation:
Because it ws rounded up to 0.6289731
and the known digits after the decimal are 7 in numbers.
0.6290 ......4 decimal digits
0.62897..... 5 decimal digits
0.628973.... 6 decimal digits
0.628973 ..... 7 decimal digits
A, the first one is a solution
Question 1: Option B: 
Question 2: Option D: 
Solution:
Question 1:
The point on the given line are (2, 4) and (4, –2).
Slope of the given line:


m = –3.
Slope of perpendicular line = –1 ÷ Slope of the given line
Slope of perpendicular line = 
Perpendicular line passing through the point (3, 1).
Slope -intercept form using point slope formula,




Option B is the correct answer.
Question 2:
The point on the given line are (0, –3) and (2, 3).
Slope of the given line:


m = 3.
Slope of parallel lines are equal.
Slope of parallel line =3
parallel lines passing through the point (–1, –1).
Point slope formula:


Option D is the correct answer.
Answer:
A. (the vertical scale)
2nd part is the Bottom graph
Step-by-step explanation: