Standard Factored Form. Unit 11 exponents & radicals. Unit 14 quadratic functions & equations.
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The sign of a determines the direction of the parabola. Look at the coefficient of the x^2 term. If a is positive, the parabola opens up. = x2 + 3x − 4. Unit 14 quadratic functions & equations. Let us expand (x+4) and (x−1) to be sure: (x+4) (x−1) = x (x−1) + 4 (x−1) = x2 − x + 4x − 4. From factored to standard form. Web math > algebra 1 > quadratics: (x+4) and (x−1) are factors of x2 + 3x − 4.
If a is positive, the parabola opens up. (x+4) and (x−1) are factors of x2 + 3x − 4. Unit 16 creativity in algebra. Yes, (x+4) and (x−1) are definitely factors of x2 + 3x − 4. This is the equation of a parabola, in standard form: If a is negative, then the parabola opens down. Let us expand (x+4) and (x−1) to be sure: If a is positive, the parabola opens up. Unit 12 exponential growth & decay. What you need to know for this lesson An expression in factored form can be rewritten in standard form by expanding it, which means multiplying out the factors.
