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anonymous
 one year ago
Select the equation of the line that passes through the point (5, 7) and is perpendicular to the line x = 4.
anonymous
 one year ago
Select the equation of the line that passes through the point (5, 7) and is perpendicular to the line x = 4.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0y = 4 x = 5 y = 7 x = 7

AakashSudhakar
 one year ago
Best ResponseYou've already chosen the best response.1So this is actually much easier than it looks. A powerful assumption can be made right from the getgo. Notice that the problem states that the line is perpendicular to the line x=4. Recall that perpendicular lines form 90 degree angles with each other and have opposite slopes. The line x=4 is actually not a function, since on the line, there are infinite values of y that satisfy the point x=4. This makes its slope actually indeterminate. However, simply visualize what a line would look like if it formed a 90 degree angle with the line x=4. You should realize that the line formed is perfectly horizontal (since a horizontal line is the only kind of line that can form a right angle with a vertical line) and thus has some equation y = ?. Now, to find what that value is. The problem also states that the line passes through the point (5,7). Visualize yet again the graph of y = ?. Yes, I know that there's no value for y, but any graph of y = (number) means that there's a horizontal line passing through the point (0, (number)). This means that for any line y = ?, x varies infinitely but y stays constant, at some value. But if the line passes through (5, 7), then you know that the value of y that the line passes through is 7. That should give you the value that the yline is constantly equal to.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thank you helped alot

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Select the coordinates of two points on the line y = −2. (2, −2) and (−2, 2) (−2, −2) and (−2, 0) (2, −2) and (0, −2) (−2, 2) and (−2, −2)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0can you help me wwith this one also @AakashSudhakar

AakashSudhakar
 one year ago
Best ResponseYou've already chosen the best response.1For this one, keep in mind what you learned in the last problem. Since y = 2, Then regardless of what value x takes on, y is ALWAYS equal to 2. So you can already eliminate three of the choices and see which answer is correct. For any line y=?, y does not change with respect to x. x can be whatever it wants and y will always stay the same. For example, if I had the line y=6, y will always be equal to 6 for any value of x. If x = 6, y = 6. If x = 1, y = 6. If x = 252491, y is still equal to 6.
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