Point slope form of (3, -3), (1,-7)

Step-by-step explanation:

-7- -3= -4

1- 3= -2 -4/-2=2

you can use either points

y-y1=m(x-x1)

if the point is negative then the sign changes to a plus

y+7= 2(x-1)

aka y+7 =2x-2

(^that would be -2 because you do 2x-1 bc you have to distribute when you solve )

Y = -2x + 3

Step-by-step Explanation:

Y = mx + b

Slope = -2, so we need to solve for b

Y = -2x + b

Use one of the two points given to solve for b

-3 = -2(3) + b

-3 = -6 + b

3 = b

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1

40 minutes

step-by-step explanation:

add the time and multiply by 2