Answer:
EASY the awnser is about 15
Answer:
ok the answer should be A.
Step-by-step explanation:
you transform the coordinates from (x,y) to (-y,x)
this means to flip the coordinates like bring y up front and change its sign and take x to the initial y position.
for example if (-1,9) when you do the transformation you get (-9,-1). you take initial -1 to the right and bring 9 to left and change its sign.
when you are done you can see that the x axis coordinates are the same but the y axis coordinates are the direct opposite. this means that after the transformation the triangle would look like the mirror image of the original triangle.
Step-by-step explanation:
- Answer is translation 3 units left
Answer:
4.5 -4.5
Step-by-step explanation:
9514 1404 393
Answer:
40 minutes
Step-by-step explanation:
The lines are graphed. The point of intersection (A) is where the two sign makers will have made the same number of signs in the same number of minutes. The answer to the question is the x-coordinate of that point, 40 minutes.
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The equation you want to solve is the one that sets Kiran's y-value equal to Lin's y-value
y = y
1/2x +5 = 1/4x +15
1/4x +5 = 15 . . . . . . . . subtract 1/4x
1/4x = 10 . . . . . . . . . . . subtract 5
x = 40 . . . . . . . . . . . . multiply by 4
At 40 minutes, both will have the same number of signs made.
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<em>Alternate solution</em>
Often, you are told to "clear fractions" as a first step in solving equations containing fractions. Here, you would do that by multiplying both sides by 4.
1/2x +5 = 1/4x +15
2x +20 = x + 60 . . . . . multiply by 4
x + 20 = 60 . . . . . . . . . subtract x
x = 40 . . . . . . . . . . . . . subtract 20
