Name____________________________Date HW 7

```Name________________________
____Date
_____________period___
HW
9.2
Laws of Exponents: Simplify each
expression.
1:
2:
3:
4:
5:
6:
7:
8:
9:
10:
11:
12:
13:
14:
15:
16:
17:
18: A rectangle has an area of
56x10y7. If the width is 7xy2, then
what is the length?
19: The volume of a rectangular
prism is 30x5y7. If the length is
2x2y2 and the height is 3xy2, then
what must the width be?
***STAAR review***
1. If a graph shows a negative
correlation, then that means as the
x-values are
increasing the y-values must be
____________________.
2. What is the meaning of the slope
in the table.
Time worked (hours) 0 20 30 40
Amount earned (dollars) 0 160
240 320
3. Solve for y.
6x + 2y = -18
4. The perimeter of a rectangle is
42 cm. The length is (x + 4)cm and
the
width is (2x – 7)cm. What are
the dimensions of the rectangle in
cm?
5. Write the equation for the line
that goes through the points (2, -7)
and (0, 9).
6. Given the linear parent function,
y = x. Describe the changes of the
line if the slope
is multiplied by -1 and the yintercept is decreased by 2.
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