## X- or y-intercept

• Given an equation of a line, find equations for lines parallel or perpendicular to it going through specified points. Find the appropriate equations and points from the table below. Simplify your equations into slope-intercept form.
• Use your assigned number to complete.
• line parallel                                                               perpendicular

y = -3x – 6; (-1, 5)             y = -3x – 6; (-1, 5)

• Discuss the steps necessary to carry out each activity. Describe briefly what each line looks like in relation to the original given line.
• What does it mean for one line to be parallel to another?
• What does it mean for one line to be perpendicular to another?
• Incorporate the following five math vocabulary words into your discussion. Use bold font to emphasize the words in your writing (Do not write definitions for the words; use them appropriately in sentences describing your math work.):
• Origin
• Ordered pair
• X- or y-intercept
• Slope
• Reciprocal

Your initial post should be 150-250 words in length. Respond to at least two of your classmates’ posts by Day 7 in at least a paragraph. Make sure you choose people who don’t have the same equations as you worked. Do you agree with how they used the vocabulary? Do their equations seem reasonable given what they started with?

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