arianaayers arianaayers
  • 09-12-2016
  • Mathematics
contestada

is (4,2) a solution to the system y-x=2 and -3x -2y= -8

Respuesta :

miriyu
miriyu miriyu
  • 09-12-2016
to figure out the answer here, all you have to do is plug the given point into your equations and see if the result is true:

(4, 2)  .... aka (x, y)

2 - 4 = 2
-2 = 2  ... this one is FALSE, as -2 doesn't equal 2, so already you can tell that the point won't be a solution, but still, check the second equation.

-3(4) - 2(2) = -8
-12 - 4 = -8
-16 = -8  .... this one is also false. (4, 2) is not a solution for this system of equations.
Answer Link

Otras preguntas

What kind of device is a keyboard?
Which is a mixture? potassium metal chlorine gas potassium chloride potassium and chlorine
When my dog died, Jen, my best friend, mailed me a note of sympathy. In it she wrote that she knew how I felt because her cat had disappeared the summer before
Where are the points supposed to go
Can you help me do number 4
Given: △KPS m∠P=105°, m∠S=30° PS=12 Find: PK.
Why is the declaration of independence important?
factor the polynomial using the pattern. x^2+12x+35
What sentence best supports the statement that hormones are involved in the regulation of homeostasis? A. The hormone erythropoeitin increases the production
the clock loses 12 minutes every hour. it shows the correct time right now which is 3. when will the clock show the correct time again