PLEASE HELP PLEASE SHOW WORK THANK YOU SOO MUCH THIS REALLY HELPED 20 POINTS!!!!!!
2 answers:
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9514 1404 393
Answer:
see attached
Step-by-step explanation:
a) A system of equations has no solutions when the graphs of those equations do not intersect. If the equations are equations of a line, then the lines must be parallel in order for them not to intersect.
Any parallel line will do.
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b) There is one solution when the graphs intersect in exactly one point.
Any line that crosses the one shown will do.
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c) There are infinite solutions when the graphs describe the same curve.
A line overlapping the one shown is the one you want.
Given:
Point B has coordinates (4,1).
The x-coordinate of point A is -4.
The distance between point A and point B is 10 units.
To find:
The possible coordinates of point A.
Solution:
Let the y-coordinate of point A be y. Then the two points are A(-4,y) and B(4,1).
Distance formula:
The distance between point A and point B is 10 units.
Taking square on both sides, we get
Taking square root on both sides, we get
and
and
Therefore, the possible coordinates of point A are either (-4,-5) or (-4,7).