Slope intercept form of (1,1) (2,-2)

Step-by-step explanation:

(1,1) (2,-2)

Y2 = -2 , y1 = 1 , x2 = 2 , x1 = 1

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

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

m = -3/1

m = -3

And the equation of line

y - y1 = m(x - x1)

y - 1 = -3(x - 1)

y - 1 = -3x + 3

y = -3x + 3 + 1

y = -3x + 4

answer: for each 3 girls there is 2 boys . 3: 2

hope this ! (:   mark me as brainliest if you can

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!