MHB Help with Pre Calc: Get Answers & Guidance

Thread starter Samanthalovesmath
Start date Jun 19, 2021

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SUMMARY

The discussion focuses on solving quadratic equations in the form of $ax^2 + bx + c = 0$. It establishes that for a specific quadratic where $c = -12$, the vertex can be calculated using the formulas $-b / 2a$ and $-D / 4a$. Participants emphasize the importance of substituting known values into these formulas to derive the solutions effectively.

PREREQUISITES

Understanding of quadratic equations
Familiarity with vertex form of a quadratic
Knowledge of the discriminant (D) in quadratic equations
Basic algebraic manipulation skills

NEXT STEPS

Study the properties of quadratic functions
Learn how to calculate the vertex of a quadratic function
Explore the significance of the discriminant in determining the nature of roots
Practice solving quadratic equations using various methods, including factoring and the quadratic formula

USEFUL FOR

Students studying precalculus, educators teaching quadratic functions, and anyone seeking to improve their algebraic problem-solving skills.

Jun 19, 2021

Samanthalovesmath

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Jun 19, 2021

DaalChawal

It's easy, let's suppose the quadratic is $ax^2 +bx +c = 0$ From the graph we can say $c= -12$ and if you know that the vertex is given by ( $-b \over 2a$ , $-D \over 4a$ )
Put the values you will get the answer.