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QUIZ
4 TAKE HOME DUE MON 7-7. DOWNLOAD GRAPH PAPER FROM THE WEB SITE AT THIS
LINK. |
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SEC. 3.1. |
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1. PLOT EACH
POINT: ( 2,-4), ( 1, -2), (-1, 5), (-3, -5), (0, 4), (-5, 0) |
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SEC.
3.2. |
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2. DETERMINE IF (0, 8) is a solution to y = 5x
+ 8; SAY YES OR NO. |
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3. DETERMINE
IF (1, -2) is a solution to 3y – 2x = -8; SAY YES OR NO. |
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4.
DETERMINE
IF EACH PAIR
IS A SOLUTION OF THE EQUATION. Then
graph the two pairs to determine another
solution. y = x – 2
; ( 3, 1), (-2, -4) . HINT: Draw a line through the two points AFTER
YOU VERIFY they
are solutions to the equation BY SUBSTITUTING AND CHECKING. THEN LOOK AT THE LINE YOU DREW FROM THESE FIRST
TWO POINTS AND FIND
A THIRD POINT ON
THE LINE. WHAT ARE COORDINATES X AND Y OF THIS THIRD POINT? |
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5.
GRAPH:
y = x – 1. |
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6.
GRAPH:
y = 2x – 3. |
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7.
GRAPH:
x + 2y = 8
Hint: TO GET ONE POINT: Set y = 0 and find x. TO GET ANOTHER POINT: Set x = 0 and find y. |
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8.
GRAPH: 2x = 5y by first solving for y. |
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9.
GRAPH:
8x – 4y =
12 by first solving for y. |
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10.
GRAPH:
4x – 2y =
8 by first solving for y. |
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11.
GRAPH: x + 5y = 10 by first solving for y. (See example 7.) |
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SEC.
3.3 |
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12. FIND THE X AND Y INTERCEPTS AND
GRAPH. 5x + 2y = 10 |
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13. GRAPH:
x = 5 .
SHOW AND LABEL ANY INTERCEPTS. WHAT IS THE SLOPE OF THIS LINE? IF THE SLOPE IS UNDEFINED THEN SAY SO. |
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14.
SEC. 3.4 . JASMINE BEGAN PROOF READING AT 9:00 AM.
SHE STARTED AT THE TOP OF PAGE 93. SHE WORKED UNTIL 2:00 PM THAT DAY AND
FINISHED PAGE 195. SHE BILLED THE PUBLISHER $220 FOR THE DAY’S WORK. (a ) Find the rate of pay in dollars per hour. |