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Big Ideas Math: Modeling Real Life, Grade 7
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Big Ideas Math: Modeling Real Life, Grade 7 View details
4. Writing and Solving Proportions
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Exercise 4 Page 208

In an ordered pair, the x-coordinate comes first and the y-coordinate comes second.

Practice makes perfect
In an ( x, y) ordered pair, the first number tells us the x-coordinate of the point and the second number tells us the y-coordinate of the point. To graph B( - 3, 0), we first find -3 on the x-axis and make a mental note of this grid line. The x-coordinate -3 tells us to move 3 units to the left of the origin — the negative horizontal direction.

The y-coordinate 0 tells us not to move from the x-axis.

The point B( - 3, 0) lies on the point at which the grid line corresponding to x-coordinate -3 intersects the x-axis.

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arrow_right Try It p.204-206
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Try It 2 (Page 204)
Try It 3 (Page 204)
Try It 4 (Page 204)
Try It 5 (Page 204)
Try It 6 (Page 204)
Try It 7 (Page 205)
Try It 8 (Page 205)
Try It 9 (Page 205)
Try It 10 (Page 205)
Try It 11 (Page 205)
Try It 12 (Page 205)
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arrow_right Self-Assessment for Concept & Skills p.206
Self-Assessment for Concept & Skills 14 (Page 206)
Self-Assessment for Concept & Skills 15 (Page 206)
Self-Assessment for Concept & Skills 16 (Page 206)
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arrow_right Self-Assessment for Problem Solving p.207
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arrow_right Review & Refresh p.208
Review & Refresh 1 (Page 208)
Review & Refresh 2 (Page 208)
Review & Refresh 3 (Page 208)
Review & Refresh 4 (Page 208)
Review & Refresh 5 (Page 208)
Review & Refresh 6 (Page 208)
Review & Refresh 7 (Page 208)
arrow_right Concept, Skills, & Problem Solving p.208-210
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Concept, Skills, & Problem Solving 9 (Page 208)
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