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Purpose!
For this assignment, you will demonstrate mastery in using the quadratic formula to find the
x-intercepts (solutions) to quadratics given in standard form.
Hints!
Quadratic formula:
x=(-b+-sqrt(b^(2)-4ac))/(2a)
Standard form:
y=ax^(2)+bx+c
HELP VIDEO HEREI!!!
Question 1: Using the Quadratic Formula (15 points)

x^(2)+3x-4=0
A. Step 1: List the values for
a,b, and
c from the quadratic above.
( 3 pts: double-click each ? and input your answers.)

Purpose! $\newline$ For this assignment, you will demonstrate mastery in using the quadratic formula to find the $x$ -intercepts (solutions) to quadratics given in standard form. $\newline$ Hints! $\newline$ Quadratic formula: $x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}$ $\newline$ Standard form: $y=a x^{2}+b x+c$ $\newline$ HELP VIDEO HEREI!!! $\newline$ Question $1$ : Using the Quadratic Formula ( $15$ points) $\newline$ $1$ . $x^{2}+3 x-4=0$ $\newline$ A. Step $1$ : List the values for $\mathbf{a}, \mathbf{b}$ , and $\mathbf{c}$ from the quadratic above. $\newline$ ( $3$ pts: double-click each ? and input your answers.)

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One-step inequalities: word problems

Full solution

Q. Purpose!

\newline

For this assignment, you will demonstrate mastery in using the quadratic formula to find the

x

-intercepts (solutions) to quadratics given in standard form.

\newline

Hints!

\newline

Quadratic formula:

x=\frac{-b \pm \sqrt{b^{2}-4 a c}}{2 a}

\newline

Standard form:

y=a x^{2}+b x+c

\newline

HELP VIDEO HEREI!!!

\newline

Question

1

: Using the Quadratic Formula (

15

points)

\newline

1

.

x^{2}+3 x-4=0

\newline

A. Step

1

: List the values for

\mathbf{a}, \mathbf{b}

, and

\mathbf{c}

from the quadratic above.

\newline

(

3

pts: double-click each ? and input your answers.)

Question Prompt: Question prompt: Find the $x$ -intercepts of the quadratic equation $x^2 + 3x - 4 = 0$ using the quadratic formula.
Identify Values: Identify the values of $a$ , $b$ , and $c$ from the quadratic equation. $\newline$ $a = 1$ (coefficient of $x^2$ ) $\newline$ $b = 3$ (coefficient of $x$ ) $\newline$ $c = -4$ (constant term)
Plug into Formula: Plug the values of $a$ , $b$ , and $c$ into the quadratic formula. $\newline$ $x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$ $\newline$ $x = \frac{-(3) \pm \sqrt{(3)^2 - 4(1)(-4)}}{2(1)}$
Simplify Square Root: Simplify under the square root. $\newline$ $x = \frac{{-3 \pm \sqrt{9 + 16}}}{2}$ $\newline$ $x = \frac{{-3 \pm \sqrt{25}}}{2}$
Solve for x: Simplify the square root. $x = \frac{{-3 \pm 5}}{{2}}$
Solve for x: Simplify the square root. $\newline$ $x = \frac{{-3 \pm 5}}{{2}}$ Solve for the two possible values of x. $\newline$ $x = \frac{{-3 + 5}}{{2}}$ or $x = \frac{{-3 - 5}}{{2}}$ $\newline$ $x = \frac{2}{2}$ or $x = \frac{-8}{2}$ $\newline$ $x = 1$ or $x = -4$

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