Question 1:
Slope = 1/5
y = mx + c 
y = 1/5 x + c
at point (5, -1)
-1 = 1/5 (5) + c
- 1= 1 + c
c = - 2
y = 1/5x - 2
5y = x - 10
Question 2:
slope = (9-5)/(3-1)
Slope = 2
y = mx + c
y = 2x + c
at point (1, 5)
5 = 2(1) + c
c = 5 - 2
c = 3
y = 2x + 3
        
             
        
        
        
The areas of the circle will represent the population, so:
Area = πr²
5² : 19,465,000
C² : 37,691,000
California circle radius = 6.96 cm
For Texas:
5² : 19,465,000
T² : 25,675,000
Texas circle radius = 5.74 cm
        
             
        
        
        
Answer:
DON'T PRES THAT LINK THAT IS A HACK AND VIRUS
Step-by-step explanation:
HOPE THIS LETS YOU REMEMBER  ABOUT NOT PRESSING THESE LINKS!
 
        
             
        
        
        
A counterexample for the statement 'All square roots are irrational numbers.' is the square root of 9.  This is because when simplified, the answer is 3.  
For a number to be irrational, it can't be expressed in fractional form.  However, 3 can be expressed in fractional form as 3/1.
        
             
        
        
        
Answer:
2 Paul's Survey sample only included tenth graders
Step-by-step explanation:
The reson why this is your answer is simple
Because this is true, he ONLY surveyed tenth-graders. He should have found for all of the students, including the other 1,100 students that didn't get surveyed. 
Thanks!