tell whether the ordered pair is a solution of the equation y=-4x+3
1. (-2, -5)
2. (3, -9)
3. (1/2, 1)
my answers: 1. no, 2. no, 3. no
but I don't think they're right...
can you please check??
I simply substituded and
the first one did not work
the second and third did work.
so #2 and #3 satisfy the equation.
thank you =)
To check if an ordered pair is a solution to an equation, you need to substitute the values of x and y from the ordered pair into the equation and see if the equation is true.
Let's check each ordered pair:
1. (-2, -5):
Substituting x = -2 and y = -5 into the equation y = -4x + 3:
-5 = -4(-2) + 3
-5 = 8 + 3
-5 = 11
This equation is not true, so (-2, -5) is not a solution to the equation y = -4x + 3.
2. (3, -9):
Substituting x = 3 and y = -9 into the equation y = -4x + 3:
-9 = -4(3) + 3
-9 = -12 + 3
-9 = -9
This equation is true, so (3, -9) is a solution to the equation y = -4x + 3.
3. (1/2, 1):
Substituting x = 1/2 and y = 1 into the equation y = -4x + 3:
1 = -4(1/2) + 3
1 = -2 + 3
1 = 1
This equation is true, so (1/2, 1) is a solution to the equation y = -4x + 3.
Your answers are correct:
1. (-2, -5) is not a solution.
2. (3, -9) is a solution.
3. (1/2, 1) is a solution.