# Math Assigment #7 – 10 Questions

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math_assignment_7.docx

math_assignment_7.docx

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10 questions – \$25 maximum
MUST SHOW WORK.
1) Graph the linear equation by finding and plotting the intercepts. Show all work and write
each intercept as an ordered pair. You may draw your graph on the grid below or create your
own graph.
5x -6y = 30
x-intercept =
y-intercept =
y
?
?
?
?
?
?
?
x
-?
-?
-?
-?
-?
-?
-?
?
-?
-?
-?
-?
-?
-?
-?
?
?
?
?
?
?
10 questions – \$25 maximum
MUST SHOW WORK.
2) Given the line with the equation x = 7:
a) Find at least three ordered pairs that satisfy the equation.
b) Find the slope of the line.
c) Graph the line. You may draw your graph on the grid below or create your own graph.
y
?
?
?
?
?
?
?
x
-?
-?
-?
-?
-?
-?
-?
?
-?
-?
-?
-?
-?
-?
-?
?
?
?
?
?
?
10 questions – \$25 maximum
MUST SHOW WORK.
3) Given the line with the equation y = -5:
a) Find at least three ordered pairs that satisfy the equation.
b) Find the slope of the line.
c) Graph the line. You may draw your graph on the grid below or create your own graph.
y
?
?
?
?
?
?
?
x
-?
-?
-?
-?
-?
-?
-?
?
-?
-?
-?
-?
-?
-?
-?
?
?
?
?
?
?
10 questions – \$25 maximum
MUST SHOW WORK.
4) Given the line with equation 3x + 4y = 12:
a) Write the equation in slope-intercept form.
b) State the slope of the line.
c) State the y-intercept of the line as an ordered pair.
d) Use slope-intercept form to graph the line. You may draw your graph on the grid below or
create your own graph.
y
?
?
?
?
?
?
?
x
-?
-?
-?
-?
-?
-?
-?
?
-?
-?
-?
-?
-?
-?
-?
?
?
?
?
?
?
10 questions – \$25 maximum
MUST SHOW WORK.
5) Write the equation of the line through the points (2, -3) and (-5, 4) in point-slope form.
6) Convert the equation that you wrote in #5 to slope-intercept form.
7) Convert the equation that you wrote in #5 to standard form.
8) Determine whether the lines with equations given are parallel, perpendicular, or neither.
Show all work and justify your conclusion.
5x + 3y = 15
6x  10y = 20
10 questions – \$25 maximum
MUST SHOW WORK.
9) The number of heart transplants, y, performed in the U.S is given by y = 64x + 2184, where x
represents the number of years after 2001.
a) According to this model, how many heart transplants were performed in the U.S. in 2001?
b) According to this model, how many heart transplants can be expected in the U.S. in 2020?
c) According to this model, in what year will there first be more than 5000 heart transplants
performed in the U.S.?
d) Explain in one or two sentences what the slope means in the context of this problem.
10 questions – \$25 maximum
MUST SHOW WORK.
10) A local Best Buy store reported that it sold 452 iPhone 6 Pluses on the day that they became
available. Five days later, the sales were down to 170 iPhone 6 Pluses. Assume that the
relationship between number of days since the phone became available and number sold is linear
and let x = the number of days since the phone became available and y = number of phones sold
at this Best Buy store.
a) Write two ordered pairs to represent the sales on the days described.
b) Find the slope of the line through those ordered pairs.
c) Write an equation in point-slope form of the line.
d) Convert the equation to slope-intercept form.
e) Explain in one or two sentences what the slope means in the context of this problem.
10 questions – \$25 maximum
MUST SHOW WORK.
1) Graph the linear equation by finding and plotting the intercepts. Show all work and write
each intercept as an ordered pair. You may draw your graph on the grid below or create your
own graph.
5x -6y = 30
x-intercept =
y-intercept =
y
?
?
?
?
?
?
?
x
-?
-?
-?
-?
-?
-?
-?
?
-?
-?
-?
-?
-?
-?
-?
?
?
?
?
?
?
10 questions – \$25 maximum
MUST SHOW WORK.
2) Given the line with the equation x = 7:
a) Find at least three ordered pairs that satisfy the equation.
b) Find the slope of the line.
c) Graph the line. You may draw your graph on the grid below or create your own graph.
y
?
?
?
?
?
?
?
x
-?
-?
-?
-?
-?
-?
-?
?
-?
-?
-?
-?
-?
-?
-?
?
?
?
?
?
?
10 questions – \$25 maximum
MUST SHOW WORK.
3) Given the line with the equation y = -5:
a) Find at least three ordered pairs that satisfy the equation.
b) Find the slope of the line.
c) Graph the line. You may draw your graph on the grid below or create your own graph.
y
?
?
?
?
?
?
?
x
-?
-?
-?
-?
-?
-?
-?
?
-?
-?
-?
-?
-?
-?
-?
?
?
?
?
?
?
10 questions – \$25 maximum
MUST SHOW WORK.
4) Given the line with equation 3x + 4y = 12:
a) Write the equation in slope-intercept form.
b) State the slope of the line.
c) State the y-intercept of the line as an ordered pair.
d) Use slope-intercept form to graph the line. You may draw your graph on the grid below or
create your own graph.
y
?
?
?
?
?
?
?
x
-?
-?
-?
-?
-?
-?
-?
?
-?
-?
-?
-?
-?
-?
-?
?
?
?
?
?
?
10 questions – \$25 maximum
MUST SHOW WORK.
5) Write the equation of the line through the points (2, -3) and (-5, 4) in point-slope form.
6) Convert the equation that you wrote in #5 to slope-intercept form.
7) Convert the equation that you wrote in #5 to standard form.
8) Determine whether the lines with equations given are parallel, perpendicular, or neither.
Show all work and justify your conclusion.
5x + 3y = 15
6x  10y = 20
10 questions – \$25 maximum
MUST SHOW WORK.
9) The number of heart transplants, y, performed in the U.S is given by y = 64x + 2184, where x
represents the number of years after 2001.
a) According to this model, how many heart transplants were performed in the U.S. in 2001?
b) According to this model, how many heart transplants can be expected in the U.S. in 2020?
c) According to this model, in what year will there first be more than 5000 heart transplants
performed in the U.S.?
d) Explain in one or two sentences what the slope means in the context of this problem.
10 questions – \$25 maximum
MUST SHOW WORK.
10) A local Best Buy store reported that it sold 452 iPhone 6 Pluses on the day that they became
available. Five days later, the sales were down to 170 iPhone 6 Pluses. Assume that the
relationship between number of days since the phone became available and number sold is linear
and let x = the number of days since the phone became available and y = number of phones sold
at this Best Buy store.
a) Write two ordered pairs to represent the sales on the days described.
b) Find the slope of the line through those ordered pairs.
c) Write an equation in point-slope form of the line.
d) Convert the equation to slope-intercept form.
e) Explain in one or two sentences what the slope means in the context of this problem.

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