4 years ago

Identify horizontal or vertical compression stretch of the function g(x) = 6x

Mathematics

1 answer:

nexus9112 [7]4 years ago

5 0

Answer:

dhjfydhftb7cuvdihcdjxuihy

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Find the solutions to the following linear-quadratic systems algebraically. Select the ordered pair that is one of the correct s

Ghella [55]

Answer:

(-2, 6)

Step-by-step explanation:

we have

$y=x^{2} +3x+8$ ----> equation A

$y=2x+10$ ----> equation B

equate equation A and equation B

$x^{2} +3x+8=2x+10$

$x^{2} +3x+8-2x-10=0$

$x^{2} +x-2=0$

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

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

in this problem we have

$x^{2} +x-2=0$

$a=1\\b=1\\c=-2$

substitute in the formula

$x=\frac{-1\pm\sqrt{1^{2}-4(1)(-2)}} {2(1)}$

$x=\frac{-1\pm\sqrt{9}} {2}$

$x=\frac{-1\pm3} {2}$

$x=\frac{-1+3} {2}=1$

$x=\frac{-1-3} {2}=-2$

Find the values of y

For x=1

$y=2(1)+10=12$

For x=-2

$y=2(-2)+10=6$

therefore

The solutions are (1,12) and (-2,6)

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3 years ago

(9) There are 18 elephants in a herd. The number of adult elephants is two times the number of young elephants in the herd. How

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12 adult elephants, 6 young elephants = 18 total :)

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The answer would be C

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krok68 [10]

Answer:

Step-by-step explanation:

https://www.mathsteacher.com.au/year8/ch06_ratios/03_inc/Image13125.gif

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3 years ago