Which of the following is an equation of the line through the points (2, 3) and (-1, -12)?
1 point
1
Question 3
3.
Yuson must complete 30 hours of community service. She does 2 hours each day. Which linear equation represents the hours Yuson has left after x days?
1 point
1
Question 4
4.
For the graph of the equation you wrote in Item 3, what does the y-intercept represent?
1 point
1
Question 5
5.
Complete the equation for the horizontal line that passes through (5, –7).
y =
1 point
1
Question 6
6.
For which values of A, B, and C will Ax + By = C be a vertical line through the point (8, 6)?
1 point
1
Question 7
7.
Which equation matches the graph?
1 point
1
Question 8
8.
What is an equation in point-slope form of the line that passes through the point (4, −1) and has slope 6?
1 point
1
Question 9
9.
What is an equation in point-slope form of the line that passes through (−7, 1) and (−3, 9)?
1 point
1
Question 10
10.
Which equation matches the graph?
3 points
3
Question 11
11.
Select the coefficients and constant for the standard form equation Ax+By=C that has an x-intercept of 3 and a y-intercept of 5.
(Write A=, B= C=, or just write the completed equation).
1 point
1
Question 12
12.
What is the equation in standard form of the line y = \frac{1}{9}x + 5?
1 point
1
Question 13
13.
What are the x-intercept and y-intercept of the graph 9x-7y=-63?
3 points
3
Question 14
14.
Derek has $20 to spend on used books. Hardcover books cost $5 each and paperbacks cost $2 each. Write the Standard Form equation which determines the number x of hardcover books and the number y of paperback books he can buy.
1 point
1
Question 15
15.
For the situation in Item 14, which of the following represents a possible combination of books that Derek can buy? Select all that apply.
1 point
1
Question 16
16.
Choose the correct way to end the sentence.
The lines 5x + 2y = 14 and y = –5x + 9 are
1 point
1
Question 17
17.
Which lines are parallel to 8x + 2y = 7? Select all that apply.
1 point
1
Question 18
18.
Which equation is the slope-intercept form of the line that passes through (6, –11) and is parallel to the graph of y = –\frac{2}{3}x + 12?
1 point
1
Question 19
19.
Line vpasses through point (6, 6) and is perpendicular to the graph of y = \frac{3}{4}x –11. Line w is parallel to line v and passes through point (–6, 10). Which is the equation of line w in slope-intercept form?
1 point
1
Question 20
20.
What is the y-intercept of the line y+11 = -2 (x+\frac{3}{2})?
For full credit, your answer must be a point indicated by an ordered pair of coordinates (x, y).