How can i find a slope with (2,1) and (0,-2)

This is how to find a slope:

y2 - y1 over like a fraction on

x2 - x1

So we would do

-2 - 1 over

0 - 2

and you would get the slope of

-3/-2

Since there can't be two negatives it turns into a positive fraction like this

3/2 = Slope

If you want to graph this it would rise 3 points in the y axis and run 2 points in the x axis

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

hello from mrbilldoesmath!

answer:

25x^2 + 90x + 84

discussion:

mn(x) = m(n(x)) = m( 5x + 9) =

(5x + 9)^2 + 3 =>

25x^2 + 90x + 9^2 + 3 =

25x^2 + 90x + 84                 (as 9^2 = 9*9 = 81)

which is the second choice

regards,  

mrb

p.s.   i'll be on vacation from friday, dec 22 to jan 2, 2019. have a great new year!