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Ineedabitofhelp Ineedabitofhelp
  • 17-02-2016
  • Mathematics
Answered

Which is a solution to the equation y = 2x – 5?


A.

(3, 11)


B.

(2, 1)


C.

(1, –3)


D.

(5, –5)

Verified Answer :

Prankvsprank21
Prankvsprank21 Prankvsprank21
  • 17-02-2016

The correct answer is C. (1, -3). 

In the brackets, the first number refers to x, and the second to y (like when you write coordinates). 

So we can check what is y ineach of the options and compare whether both of the sided of the equasion are equal:
A. 2x-5=-1, should be 11, false
B. 2x-5=4-9=-5, should be 1, false
C. 2x-5=2-5=-3, should be -3, correct
D. 2x-5=10-5=5, should be -5, false

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