4 years ago

What is the equation of the line in point slope form that passes through the point (-1, -5) and has a slope of -2

Mathematics

1 answer:

daser333 [38]4 years ago

7 0

Option 4.) y+1=-2(x+5)

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The quotient of m and 11 minus 3 as a algebraic expression

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3 years ago

Select the two values of x that are roots of this equation.<br> 2x2 + 11x+15= 0

USPshnik [31]

Answer:

The two values of x are -2.5 and -3

Step-by-step explanation:

we have

$2x^{2}+11x+15=0$

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

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substitute in the formula

$x=\frac{-11(+/-)\sqrt{11^{2}-4(2)(15)}} {2(2)}$

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$x_2=\frac{-11(-)1} {4}=-3$

therefore

The two values of x are -2.5 and -3

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