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Welcome to Algebra I: Finding Zeros of Quadratic Functions

12 minutes 7 seconds

Now Playing As: Captioned (English) (change)

In this program, students learn how to find the zeros of quadratic functions. These points occur where the graph of the quadratic equation crosses the x-axis. Part of the "Welcome to Algebra I" series.

Media Details

Runtime: 12 minutes 7 seconds

Course Overview Course Modules
Woman with dark hair wearing a gray shirt stand at a podium in front of an illuminated blue and purple background. She holds a pen in her right hand while looking down at a screen in front of her.
Welcome to Algebra I
Episode 1
30 minutes 32 seconds
Grade Level: 7 - 12
Woman with dark hair in a bun wearing a green shirt stands at a podium in front of an illuminated blue and purple background. She holds a pen in her right hand while looking down at a screen in front of her.
Welcome to Algebra I
Episode 2
24 minutes 38 seconds
Grade Level: 7 - 12
Closeup of a large screen on top of a podium with a hand holding a pen writing numbers. Title on the screen reads, "Multiplication Property of Inequality. A equals 1, B equals 2, C equals 3." An if and then table appears below and reads, "If A is less than B and C is positive, then A, C is less than B, C."
Welcome to Algebra I
Episode 3
17 minutes 24 seconds
Grade Level: 7 - 12
Aerial side view of a hand using a stylus to work out a math problem on a computer screen. Text on screen reads, "Example 2. Write the numeric expression in its simplest radical form."
Welcome to Algebra I
Episode 4
16 minutes 18 seconds
Grade Level: 7 - 12
Split screen. The left is a white background with blue text that reads, "How did I get that?" followed by the algebra equation, 9, X, sup 5, Y minus 4, X sup 3, plus X squared. To the right, a woman works through the problem using a screen in front of her.
Welcome to Algebra I
Episode 5
21 minutes 21 seconds
Grade Level: 7 - 12
Split screen. The left is a white background with blue text that reads, "Example 3. The bill at the restaurant was split evenly 4 ways." Handwriting below reads, B is to Bill. To the right, a woman works through the problem using a screen in front of her.
Welcome to Algebra I
Episode 6
8 minutes 48 seconds
Grade Level: 7 - 12
Split screen. The left is a white background with blue text that reads, "Example 2. Evaluate 3 minus 10, X, when X equals 2 over 5." Handwriting below reads, 3 minus 10 times 2 over 5. To the right, a woman works through the problem using a screen in front of her.
Welcome to Algebra I
Episode 7
23 minutes 57 seconds
Grade Level: 7 - 12
Split screen. The left is a white background with a chart with 2 rows and 3 columns labeled, "Verbal, Explanation, Example." The boxes are filled in with a combination of typed and handwritten text. To the right, a woman works through the problem using a screen in front of her.
Welcome to Algebra I
Episode 8
14 minutes 7 seconds
Grade Level: 7 - 12
Split screen. The left is a white background with a math word problem written in blue. Text at the top reads, "Example 3. Determine if the situation presents a direct variation. Below this, the problem is in typed text and the answer is in handwritten text. To the right, a woman works through the problem using a screen in front of her.
Welcome to Algebra I
Episode 9
24 minutes 25 seconds
Grade Level: 7 - 12
Split screen. The left is a white background with blue text that reads, "Solve for x. 3 times 2 over 3, X equals 4." To the right, a woman works through the problem using a screen in front of her. Caption. Put my multiplication symbol and a 3.
Welcome to Algebra I
Episode 10
15 minutes 43 seconds
Grade Level: 7 - 12
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