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2 years ago

What is an equation in point-slope form of the line that passes through (−1,−4) and (2, 5)? pls pls pls help asap

Mathematics

2 answers:

nalin [4]2 years ago

7 0

Answer:

I'm not very sure, but I would say C. I know Abby is smart, but I think C is right.

Luba_88 [7]2 years ago

6 0

Answer:

the 2nd one??

Step-by-step explanation:

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Which of the following expressions have a

Yuki888 [10]

A and D i think.(sry this needed to be 20 characters long)

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3 years ago

Solve x2 - 8x - 9 = 0. Rewrite the equation so that it is of the form x2 + bx = c.

barxatty [35]

Answer:

x=9,-1 and $x^2+(-8)x=9$

Explanation:

we have been given with the quadratic equation $x^2-8x-9$

we compare the given quadratic equation with general quadratic equation

general quadratic is $ax^2+bx+c=0$

from given quadratic equation a=1,b= -8,c= -9

substituting these values in the formula for discriminant $D=b^{2}-4ac$

$D=(-8)^2-4(1)(-9)=100$

Now, to find the value of x

Formula is $x=\frac{-b\pm\sqrt{D}}{2a}$

Now, substituting the values we will get

$x=\frac{-(-8)\pm\sqrt{100}} {2}= \frac{8\pm10}{2}=9,-1$

And rewritting the given equation by shifting 9 to right hand side of the given equation and taking minus inside the bracket so as to convert it in the form of

$x^2+bx=c$

4 0

3 years ago

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A rectangular garden is fenced on all sides with 278 feet of fencing. The garden is 9 feet longer than it is

JulijaS [17]

It’s 301 bc u add them together

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3 years ago

Lauren describes a parabola where the focus has a positive, nonzero x coordinate. Which parabola(s) could Lauren be describing?

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3 years ago

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(2x - 3y)(4x - y) Please help

andre [41]

(2x - 3y) (4x - y) = 8x² - 2xy - 12xy + 3y²

(2x - 3y) (4x - y) = 8x² -14xy + 3y²

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Answer:8x² -14xy + 3y²
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3 years ago