HELP ASAP WILL GIVE BRAINLIEST!! Write the equation in point-slope form for the line that contains the points

Mathematics

1 answer:

Umnica [9.8K]3 years ago

6 0

Using y=mx+b

Slope-intercept form:

y=x-1

Point-slope form:

Y+3=1(x+2)

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Step-by-step explanation:

There are 3 ways to find the other x intercept.

1) Polynomial Long Division.

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2) Just solving for x when y = 0, by using the quadratic formula.

$x^2 - 3x + 2 = 0\\x_{12} = \frac{3 \pm \sqrt{9 - 4(1)(2)}}{2} = \frac{3 \pm 1}{2} = 2, 1$ .

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3) Using Vietta's Theorem regarding the solutions of a quadratic

Namely, the sum of the solutions of a quadratic equation is equal to the quotient between the negative coefficient of the linear term divided by the coefficient of the quadratic term.

$x_1 + x_2 = \frac{-b}{a}$

And the product between the solutions of a quadratic equation is just the quotient between the constant term and the coefficient of the quadratic term.

$x_1 \cdot x_2 = \frac{c}{a}$