1: which ordered pair is the solution of the equation y = 3x?
A: (-2,-9)
B: (-8,-18)
C: (-8,-3)
D: (-10,-30)
2: which ordered pair is the solution of the equation y=-9+4
A: (10,-86)
B: (-4,58)
C: (6,-41)
D: (-6,57)
-30 = 3 * -10
I think you mean
y = -9 x + 4
if x = 10
y = -90 + 4 = -86 done
To find the solution to each equation, we will substitute the given values of x and y into the equation and check if the equation holds true.
1. For equation y = 3x:
A. (-2,-9):
Substituting x = -2 and y = -9 into the equation,
-9 = 3*(-2)
-9 = -6
This equation is not true, so (-2,-9) is not a solution.
B. (-8,-18):
Substituting x = -8 and y = -18 into the equation,
-18 = 3*(-8)
-18 = -24
This equation is not true, so (-8,-18) is not a solution.
C. (-8,-3):
Substituting x = -8 and y = -3 into the equation,
-3 = 3*(-8)
-3 = -24
This equation is not true, so (-8,-3) is not a solution.
D. (-10,-30):
Substituting x = -10 and y = -30 into the equation,
-30 = 3*(-10)
-30 = -30
This equation is true, so (-10,-30) is a solution.
Therefore, the solution of the equation y = 3x is (-10,-30).
2. For equation y = -9 + 4:
A. (10,-86):
Substituting x = 10 and y = -86 into the equation,
-86 = -9 + 4
-86 = -5
This equation is not true, so (10,-86) is not a solution.
B. (-4,58):
Substituting x = -4 and y = 58 into the equation,
58 = -9 + 4
58 = -5
This equation is not true, so (-4,58) is not a solution.
C. (6,-41):
Substituting x = 6 and y = -41 into the equation,
-41 = -9 + 4
-41 = -5
This equation is not true, so (6,-41) is not a solution.
D. (-6,57):
Substituting x = -6 and y = 57 into the equation,
57 = -9 + 4
57 = -5
This equation is not true, so (-6,57) is not a solution.
Therefore, there is no solution for the equation y = -9 + 4.
To find the solution to an equation, you need to substitute the given values of x and y into the equation and see if the equation holds true.
1: For the equation y = 3x, we can check each answer choice by substituting the x and y values into the equation. Let's go through each option:
A: (-2,-9)
Substituting x = -2 and y = -9 into the equation, we get -9 = 3(-2), which simplifies to -9 = -6. This is false since -9 does not equal -6.
B: (-8,-18)
Substituting x = -8 and y = -18 into the equation, we get -18 = 3(-8), which simplifies to -18 = -24. This is false since -18 does not equal -24.
C: (-8,-3)
Substituting x = -8 and y = -3 into the equation, we get -3 = 3(-8), which simplifies to -3 = -24. This is also false since -3 does not equal -24.
D: (-10,-30)
Substituting x = -10 and y = -30 into the equation, we get -30 = 3(-10), which simplifies to -30 = -30. This is true since -30 does equal -30.
Therefore, the ordered pair (-10,-30) is the solution to the equation y = 3x.
2: For the equation y = -9 + 4, we can similarly substitute the given x and y values into the equation to see if it holds true.
A: (10,-86)
Substituting x = 10 and y = -86 into the equation, we get -86 = -9 + 4, which simplifies to -86 = -5. This is false since -86 does not equal -5.
B: (-4,58)
Substituting x = -4 and y = 58 into the equation, we get 58 = -9 + 4, which simplifies to 58 = -5. This is also false since 58 does not equal -5.
C: (6,-41)
Substituting x = 6 and y = -41 into the equation, we get -41 = -9 + 4, which simplifies to -41 = -5. This is false since -41 does not equal -5.
D: (-6,57)
Substituting x = -6 and y = 57 into the equation, we get 57 = -9 + 4, which simplifies to 57 = -5. This is false as well since 57 does not equal -5.
Therefore, none of the options provided, (A, B, C, D), satisfies the equation y = -9 + 4.
well, did you try the points?
Does -9 = 3(-2) ?? No.
So try the others till you find the one which works in the equation.