Is (1, - 7) a soulution to the equation y = r - 8?
To determine if (1, -7) is a solution to the equation y = r - 8, we need to substitute the given values of x and y into the equation and check if the equation holds true.
Substituting x = 1 and y = -7 into y = r - 8:
-7 = r - 8
Adding 8 to both sides:
-7 + 8 = r - 8 + 8
1 = r
So, with r = 1 and y = -7, the equation y = r - 8 is satisfied.
Therefore, (1, -7) is a solution to the equation y = r - 8.
To check if (1, -7) is a solution to the equation y = r - 8, you need to substitute the values x = 1, y = -7 into the equation and see if it holds true.
Given: y = r - 8
Substituting x = 1, y = -7:
-7 = r - 8
Now, let's solve for r:
-7 + 8 = r
1 = r
Since the value of r is 1 when x = 1 and y = -7, (1, -7) is indeed a solution to the equation y = r - 8.
To check if the point (1, -7) is a solution to the equation y = r - 8, we need to substitute the given values into the equation and see if it holds true.
In this case, the equation y = r - 8 indicates that the value of y is equal to the value of r minus 8. Substituting the given point (1, -7), we have:
-7 = 1 - 8
Now we need to evaluate the right side of the equation:
-7 = -7
Since the equation is true, we can conclude that (1, -7) is indeed a solution to y = r - 8.
To check if a point is a solution to an equation, simply substitute the values of the variables into the equation and simplify both sides to see if they are equal.