TEKS.MATH.9-12.IX.C.1

When you graph a line using slope-intercept form, you plot the  ___________ first and then the ___________.

• origin; slope 
• slope; y-intercept
• y-intercept; x-intercept
• y-intercept; slope

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TEKS.MATH.9-12.IX.C.1

What is the biconditional statement of the following conditional statement?
“If Shelly lives in Texas, then she lives in the United States.”

• If Shelly lives in Texas, then she lives in the United States.
• If Shelly lives in the United States, then she lives in Texas.
• Shelly lives in Texas if and only if she lives in the United States.
• If Shelly does not live in Texas, then she does not live in the United States.

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TEKS.MATH.9-12.IX.C.1

Write x < -5 in words.

• x is greater than -5
• x is greater than or equal to -5
• x is less than -5
• x is less than or equal to -5

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TEKS.MATH.9-12.IX.C.1

Write x ≤ 23 in words.

• x is greater than 23
• x is greater than or equal to 23
• x is less than 23
• x is less than or equal to 23

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TEKS.MATH.9-12.IX.C.1

Write x ≥ -2 in words.

• x is greater than -2
• x is greater than or equal to -2
• x is less than -2
• x is less than or equal to -2

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TEKS.MATH.9-12.IX.C.1

What are the steps for graphing a line?

• 1. Plot y-intercept
  2. count slope ratio plot second point
  3. Draw the line.
• 1. Make a table
  2. Plot slope
  3. Draw line
• 1. Plot two points
  2. Check slope
  3. Draw line
• 1. Draw line
  2. Hope it is right

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TEKS.MATH.9-12.IX.C.1

To find the solution(s) for a set of inequalities graphically, you will

• graph the two inequalities and the points of intersection are the solutions.

• graph the two inequalities and see were they cross the x-axis

• graph the two inequalities and the overlapping shading represents the solutions

• graph the two inequalities and the unshaded area is the solution set.

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TEKS.MATH.9-12.IX.C.1

Why do we graph inequalities?

• There is no good reason to graph inequalities.

• We need to practice our art skills.

• THE GRAPH SHOWS ALL THE SOLUTIONS TO THE INEQUALITY.

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TEKS.MATH.9-12.IX.C.1

Write the contrapositive of the following statement.

"If a figure is a triangle, then the angles add to 180.

• If a figure is not a triangle, then the angles do not add to 180.

• If the angles of a figure do not add to 180, then it is not a triangle.

• If a figure has angles that add to 180, then it is a triangle.

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TEKS.MATH.9-12.IX.C.1

Write the conditional statement that follows from the pair of true statements.

If the sun is shining, then it is a beautiful day.

If it is a beautiful day, then we will have a picnic.

• If the sun is shining, then it is a beautiful day.

• If it is a beautiful day, then the sun is shining.

• If the sun is shining, then we will go on a picnic.

• If we go on a picnic, then the sun is shining.

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TEKS.MATH.9-12.IX.C.1