Math 2 (Allen)Exam 1, part 1
name
2/16/22
Please use pencil. To receive credit you must show your work.
1) I worked alone on this exam, and I did not share my answers with anyone. I also did not use the
internet to find answers. Please sign
2) Choose the correct answer: Only
a) linear
b) absolute value
functions are invertible (have an inverse function).
c) rational
d) one-to-one
3) Any line parallel to 5x – 7y = 70 would have slope m =
4) Any line perpendicular to g(x) = 6x + 30 would have slope m =
5) Sketch 3x + 4y = 12
x2
6
2 x 1 x 2
6) Sketch f ( x )
7) An open box with a square base has a volume of 180 cubic inches. Find the surface area of the
box as a function of x (where x = the length of the side of the square base). Next, use your
calculator to find the dimensions that lead to the box with the minimum surface area. Write your
answer as a sentence, and include the dimensions as well as the minimum surface area.
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