Question

4 questions. Please help :P
1. Solve the system by graphing.
(y=x-3
(y=-2x-3
A.(1,-3)
B(1,3)
C.(1,-3)

2. solve the system by graphing.
(y=-x+4
(x=y=2
A.(3,3)
B.(3,1)
C.(1,3)

3. Simplify the expression.(Exponent)
(-2)^ -4
A. 1/16
B. 1/8
C.-8

4.Evaluate the expression for the given value of the variable. p^-3 for p=4
A. 1/64
B.-16
C.1/32

Answer 1

Graph the equations and see where they intersect.