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Key Concept Quiz 6.2
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1
Change the equation y = –x + 1 to standard form.
A)x + y –1 = 0
B)–x + y –1 = 0
C)x – y –1 = 0
D)–x – y –1 = 0
2
Change the equation 4x + 2y – 6 = 0 to slope-intercept form.
A)y = 2x + 3
B)y = –2x + 3
C)y = –2x – 3
D)y = 2x – 3
3
Find the slope and y-intercept of the line –6x + 3y + 12 = 0.
A)m = –2, b = –4
B)m = –2, b = 4
C)m = 2, b = 4
D)m = 2, b = –4
4
Consider the equation y – 3 = 0.
A)This is the equation of a vertical line with an x-intercept of 3.
B)This is the equation of a vertical line with an x-intercept of –3.
C)This is the equation of a horizontal line with a y-intercept of 3.
D)This is the equation of a horizontal line with a y-intercept of –3.
5
The volume of cement in cubic metres remaining in a hopper at the Easy Pour Paving Company is given by the equation V + 10n –200 = 0, where n represents the number of cement trucks filled at the hopper. Find the variable part of the volume.
A)10n
B)–10n
C)200
D)–200





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