2 years ago

Length A is 4 ft. after a dilation is performed length B is 7ft. what was the scale factor used?

Mathematics

1 answer:

kogti [31]2 years ago

5 0

1.75

4 x 1.75 = 7 so that is the answer

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Y=-x+7 , y=x-1 and show your work Help !

Gelneren [198K]

This is a system of equations. The best way to solve it is by realizing that you have two equations equal to y. Since y = y, it follows that $-x+7=x-1$ . Solving for x, you get 4.

$7=2x-1 \\ 8=2x \\ 4=x$

Then, substitute 4 into one of the original equations to find y.

$y=(4)-1=3$ .

The solution is $(4,3)$ . I have attached a graphical representation of the solution as well.