ztfountain
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How would I solve this?

Select all of the following equations that would have the point (4, 16) located on their graph. There is more than one answer.

y = x^2

y = 2^x

y = (1/2)^x

y = |-4x|

y = - |4x|

y = 2x

Respuesta :

altavistard
Subst. 4 for x and 16 for y in each of these given equations. If one particular equation is then true, we know that (4,16) is a "solution" of the equation, or the coordinates of a point on the graph.

Example:  Does (4,16) satisfy y = 2x?  Is 16 = 2(4) true?  NO.  Therefore, y=2x is not satisfied by the given point (4,16).  

You must check out all the remaining equations in the same fashion.