Write the equation of the line with slope -2 through the point (7,-1)

y = -2x + 13

Step-by-step explanation:

To find the equation, we need to find the y intercept. To find the y intercept, plug in the points you have into the slope-intercept equation.

Slope intercept equation: y = m(x) + b

y (a y-coordinate) = -1

x (a corresponding x-coordinate) = 7

m (the slope) = -2

b (the y-intercept) = ?

-1 = -2(7) + b

Now, solve for b.

-1 = -14 + b

13 = b

Therefore, the y intercept is 13.

Now, we can write the equation in slope-intercept form.

y = -2x + 13

step-by-step explanation:

i have done this all on a piece of paper but idk how to put it on here cuz it needs to be drawn

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations: