imdumb220
imdumb220 imdumb220
  • 04-03-2022
  • Mathematics
contestada

The points (-3, 12) and (-1, r) lie on a line with slope - 3. Find the missing coordinate r.

Respuesta :

clarch19
clarch19 clarch19
  • 04-03-2022

Answer:

r = 6

Step-by-step explanation:

(12-r) / ((-3-(-1)) = -3/1

[tex]\frac{12-r}{-2}[/tex] = -3

cross-multiply:  

12 - r = 6

subtract 12 from each side:

-r = -6

divide each side by -1:

r = 6

Answer Link

Otras preguntas

8. A pattern of being late for work or for appointments is usuallyA. a habit learned early, which is nearly impossible to break.B. directly related to one's per
Suppose that 2 scientists use different measurement systems in their work. What problems might arise if they shared their data?
is a piece of cloth a point, line, or plane?
What is the GCF of 80x3 and 30yx2??? (The 3and2 are exponets)
Write an addition equation with a positive addend and a negative addend and a resulting sum of -8
how do you solve 4a/b divided by 2ac/b
Solve the equation x=x+3
what is 69/25 as a terminating decimal
1/3(9x+27)-4=1/2(2x+54)
placing 12 tiles side by side, Pete can make a 12-by-1 rectangle. Name two other rectangles Pete can make with 12 tiles