How to solve a quadratic when there are no solutions

How to solve a quadratic when there are no solutions

Assessment

Interactive Video

Mathematics

11th Grade - University

Hard

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The video tutorial explains how to set up and attempt to solve the quadratic equation y = X^2 + 5. It discusses the process of setting y to zero and solving for X, highlighting the issue of taking square roots of negative numbers. The tutorial concludes that there are no X intercepts or solutions for negative numbers and hints at future lessons on handling negatives.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving the equation y = X^2 + 5 for X intercepts?

Add 5 to both sides

Set Y to 0

Multiply both sides by 2

Divide both sides by X

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why can't we find X intercepts for the equation X^2 + 5 = 0?

Because the equation is not quadratic

Because there are no real numbers that multiply to give a negative result

Because X^2 is always positive

Because 5 is too large

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of multiplying -2 by -2?

2

0

4

-4

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you write if there are no X intercepts for a negative number?

X intercepts are positive

X intercepts exist

No solutions

Solutions exist

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What will be covered later in the year regarding negative numbers?

How to add them

How to multiply them

How to deal with them in equations

How to divide them