Question 753350: Which equation describes a line with slope 3 and y-intercept -7 ? Please help !
Answer by solver91311(24713)   (Show Source):
You can put this solution on YOUR website!
The absolutely correct answer would be "None of the above" because there is no such thing as a  -intercept of -7. Intercepts are points, and in  , intercepts are designated by ordered pairs. It would be correct to say that the -intercept is ) or that the -coordinate of the -intercept is -7.
Be that as it may, you didn't bother to share your choices, so I can't do much but tell you that if both the ordered pair and the ordered pair ) are elements of the solution set of the equation, then the equation describes a line with the given parameters assuming correct terminology for the -intercept.
Hint: In order to determine whether or not an ordered pair is an element of the solution set of an equation, substitute the  -coordinate for in the equation, substitute the -coordinate for in the equation, and then do the indicated arithmetic. If the result is a true statement, then the order pair is an element of the set of ordered pairs described by the equation -- otherwise not.
John
Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
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