Solve the equation using addition or subtraction

1. 4 = q + 13

2. 5.5 = -2 + d

3. -7y = 28

solve the equation using multiplication or division

1. -13 = m/-5

solve the equation

1. 3/4 x = 9

2. 3/8p = 9

guess at question:

a vertical line intersects the graph of g(x,y) = 0 at two points. what conclusion follows about the function f(x) implicitly defined by g(x,f(x)) = 0?

the domain of f(x) cannot include the x coordinate of any such vertical line.

informally, f(x) is not a function, and

g(x,y)=0 cannot be solved for y uniquely.

the relation r = {(x,y) such that g(x,y) = 0} is a function if

for all (a,b) ∊ r and (c,d) ∊ r, a=c implies b=d.

step-by-step explanation: