A student received a coupon for ​% off the total purchase price at a clothing store. Let be the original price of the purchase. Use the expression below for the new price of the purchase. Write an equivalent expression by combining like terms. z - 0.13z

z - 0.13z=

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:

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step-by-step explanation:

the formula of a slope:

we have the points (-2, 7) and (2, 3). substitute: