Which is a solution of the equation y = 2x + 5?
A. (5, 20)***
B. (6, 12)
C. (3, 11)
D. (4, 14)
y = 2x + 5.
A. y = 2*5 + 5 = 15, not 20.
C. y = 2*3 + 5 = 11. yes.
sure... Is 20 = 2*5 5?
Try again.
i had forgotten how to do it, thanks!!
you have some catching up to do.
2*3 + 5 = 6 + 5 = 11
To find a solution to the equation y = 2x + 5, you need to substitute the values of x and y from each option into the equation and check if the equation holds true.
Let's go through each option one by one:
A. (5, 20):
If you substitute x = 5 and y = 20 into the equation, you get 20 = 2(5) + 5, which simplifies to 20 = 10 + 5 and further simplifies to 20 = 15. This is not true, which means (5, 20) is not a solution to the equation.
B. (6, 12):
If you substitute x = 6 and y = 12 into the equation, you get 12 = 2(6) + 5, which simplifies to 12 = 12 + 5 and further simplifies to 12 = 17. This is not true, which means (6, 12) is not a solution to the equation.
C. (3, 11):
If you substitute x = 3 and y = 11 into the equation, you get 11 = 2(3) + 5, which simplifies to 11 = 6 + 5 and further simplifies to 11 = 11. This is true, which means (3, 11) is a solution to the equation.
D. (4, 14):
If you substitute x = 4 and y = 14 into the equation, you get 14 = 2(4) + 5, which simplifies to 14 = 8 + 5 and further simplifies to 14 = 13. This is not true, which means (4, 14) is not a solution to the equation.
Therefore, the only solution to the equation y = 2x + 5 is option A, (5, 20).