...that you will substitute into? 1. In solving this system by the substitution method, what is the expression for x that you will substitute into the second equation?
x-2y=7
3x+2y=-5
A. x=-2y +7
B. x=-5-3/2y
C.x=2y+7
D. None of the above
2. If the vertex of a parabola is (2,7) what is the equation for the axis of symmetry? (Assume this parabola opens upward.)
A. y = 2
B. y = 7
C. x = 7
D. x = 2
3. In solving this system by the substitution method, what is the expression for x that you will substitute into the second equation?
x-4y=13
2x+3y=-7
A. x = 13 - 4y
B. x=-7+3/2x
C. x = 4y + 13
D. none of the above
4. Simplify (-4x^2y^3)^3
64x^6y^9
-64x^6y^9
64x^5y^6
-64x^5y^6
x-2y=7
3x+2y=-5
A. x=-2y +7
B. x=-5-3/2y
C.x=2y+7
D. None of the above
2. If the vertex of a parabola is (2,7) what is the equation for the axis of symmetry? (Assume this parabola opens upward.)
A. y = 2
B. y = 7
C. x = 7
D. x = 2
3. In solving this system by the substitution method, what is the expression for x that you will substitute into the second equation?
x-4y=13
2x+3y=-7
A. x = 13 - 4y
B. x=-7+3/2x
C. x = 4y + 13
D. none of the above
4. Simplify (-4x^2y^3)^3
64x^6y^9
-64x^6y^9
64x^5y^6
-64x^5y^6