10. Which of the following is the equation of a line that passes through (-2,-1) and (-4,-3)?
A. y=2x+1
B. y=x+1
C. y=2x-1
D. y=x-1

B) y=x+1

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(-3-(-1))/(-4-(-2))

m=(-3+1)/(-4+2)

m=-2/-2

m=1

y-y1=m(x-x1)

y-(-1)=1(x-(-2))

y+1=(x+2)

y+1=x+2

y=x+2-1

y=x+1

Step-by-step explanation:

hello : answer B

because : when  x= -2  y= -2+1=-1

                 when : x=-4   y=-4+1 = -3

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages