Answer:
I think so
Step-by-step explanation:
In pretty sure its correct
Answer:
The function is always increasing
Step-by-step explanation:
To be increasing, the y value needs to be getting bigger as x gets bigger
This is true for all values of x
The function is increasing for all values of x
Answer:
y = 3
Step-by-step explanation:
It can work well to start by eliminating parentheses.
6(y -1/3) = 4(3y -5)
6y -2 = 12y -20
18 = 6y . . . . . . . . . add 20-6y to both sides
3 = y . . . . . . . . . . . divide by 6
Answer:
see explanation
Step-by-step explanation:
The student's arithmetic is incorrect
To determine if (1, - 2) is a solution to the system of equations
Substitute x = 1 and y = - 2 into the left side of both equations and if equal to the right side then the point is a solution to the system.
5x - y = 5(1) - (- 2) = 5 + 2 = 7 = right side
x + 4y = 1 + 4(- 2) = 1 - 8 = - 7 ≠ - 5
The point does not satisfy the second equation.
Thus (1, - 2) is not a solution of the system of equations
Since one equation has a variable already solved for, we can use that to plug it in to the other equation.
Y has been solved for, plug it into the other one
x + 4(-x+3) =6
x + -4x + 12 = 6
-12. -12
x+(-4x) = -6
-3x = -6
/-3. /-3
x=2
y = -x+3
y = -(2)+3
y=1