1. The slope of a linear equation
______________ as the x-value increases.
B. remains constant
D. increases and then decreases
2. A quadratic function’s x-intercepts are
points where _________________.
A. the graph crosses the x-axis
B. the x-values are equidistant from the line of symmetry
C. f(x) is equal to 0
D. all of the above
3. Lines L and M intersect at point A and lines
M and N intersect at point B. If the three lines are all in the same
plane and only combine to produce two points of intersection then
A. lines L and M are perpendicular
B. lines L and M are parallel
C. lines L and N are perpendicular
D. lines L and N are parallel
the article “With more insured, rural docs can’t keep up” on page A1
of the Tuesday, September 2nd, Seattle Times.
The ACA provided funding for 550 residents to work as primary care
doctors in underserved areas across the country. Washington State
has 2.2% of the nation’s population. If the funding for the primary
care residencies was distributed by population, how many fewer
Washington residencies would be funded by the ACA?
The Community-Based Medical Education Act of 2014 would expand the
ACA’s funding of primary care residencies. If passed, the act would
expand the number of residency slots to 2050. If the new residency
slots were distributed in the same proportion as the existing ones,
how many more residencies would Washington State receive?
the article “Power clashes cloud solar’s future” on page A1 of the
Sunday, September 7th Seattle Times.
of the beginning of this year, California had 271,000 solar
installations while Washington had only 5,700. Some of that
discrepancy is due to the larger number of households in California.
Washington has 2.93 million households compared to California’s 13.8
million households. If
Washington had as many solar installations per household as
California, then how many more would Washington have?
7.While solar power currently makes up a
tiny percentage of the U.S. energy supply, it is growing rapidly.
Last year the total capacity of the solar systems installed
worldwide grew by 35%. If the number of Washington’s solar
installations increased by 35% each year, how many would there be in
Mr. Leber installed his solar system in 2013 at a cost of $17,000.
He estimates that the system will repay 70% of its costs though
energy saving s by the year 2020. How much does Mr. Leber expect to
save each year on energy costs thanks to his solar system?
Mr. Leber’s solar energy system offsets a third of his energy costs,
how much would he be paying each month for energy without the
10. Examine the graph titled “Washington solar
power” on page A12. If the capacity of the solar installations in
the state continues to increases at the same growth rate, which of
the following equations would represent the solar capacity, M, in
megawatts of the state’s solar installations in the year N?
A. M= 7.1 + 2.9N
B. M = 2.5 * (1.69)N
C. M = 2.5* (1.69)N - 2013
D. M = 7.1* (1.69)N – 2013
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