which equation has (2 -1) as a solution
a y=2x-1
b y=x+3
c y=x-3*****
d y=-2x+1
Yes,
its c/ thanks
C is correct.
oh ok thanks :)
You're welcome.
To find the equation that has the solution (2, -1), you need to substitute the values (2, -1) into the various equations and see which one satisfies the given points.
Let's substitute (2, -1) into the given equations:
a) y = 2x - 1
Substituting x = 2 and y = -1:
-1 = 2(2) - 1
-1 = 4 - 1
-1 = 3 (which is not true)
b) y = x + 3
Substituting x = 2 and y = -1:
-1 = 2 + 3
-1 = 5 (which is not true)
c) y = x - 3
Substituting x = 2 and y = -1:
-1 = 2 - 3
-1 = -1 (which is true)
d) y = -2x + 1
Substituting x = 2 and y = -1:
-1 = -2(2) + 1
-1 = -4 + 1
-1 = -3 (which is not true)
From the calculations, it is clear that the equation that has the solution (2, -1) is y = x - 3. Therefore, the correct answer is option c) y = x - 3.