What is the scale factor if a 8 in. by 10 in. photograph is enlarged to a poster that is 6 ft. by 7.5 ft.?
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We have
x>=-2
x<=6
y>=-1
y<=4
using a graph tool
see the attached figure
the solution is the figure of a rectangle <span>limited by points
</span>(-2,-1) (6,-1) (-2,4) (6,4)
the answer is
a rectangle
a parallelogram (rectangles<span> are subsets belonging to the set of </span><span>parallelograms)</span>
x>=-2
x<=6
y>=-1
y<=4
using a graph tool
see the attached figure
the solution is the figure of a rectangle <span>limited by points
</span>(-2,-1) (6,-1) (-2,4) (6,4)
the answer is
a rectangle
a parallelogram (rectangles<span> are subsets belonging to the set of </span><span>parallelograms)</span>
Find the inverse, interchange the variables to solve for y
f-1 (x)=-![\frac{8- \sqrt[]{_2(-8+x)} }{2} ,](https://tex.z-dn.net/?f=%20%5Cfrac%7B8-%20%5Csqrt%5B%5D%7B_2%28-8%2Bx%29%7D%20%7D%7B2%7D%20%2C)
f-1 (x)=-