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3 years ago

Compare the following to the parent function. Select all that apply.

Mathematics

1 answer:

RideAnS [48]3 years ago

7 0

Answer:

A. Vertical Stretch

Step-by-step explanation:

Given function

y = 3x^2

Parent function is

f(x) = x^2

The given is

y = 3f(x) and it is the form of y = kf(x) with k > 1

Each point of y is 3 times closer to y-axis, therefore this is a vertical stretch.

Correct option is A only

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What is the slope of the line that lies between the points (0, -1) and (-1,2)?

Shkiper50 [21]

Answer:

m=-3

Step-by-step explanation:

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2 years ago

Write an equation in slope-intercept form that goes through (12, 4) and (20,8).

spayn [35]

Answer:

Equation in slope-intercept form that goes through (12, 4) and (20,8) is: $y = \frac{1}{2}x-2$

Step-by-step explanation:

Given two points are:

$(x_1,y_1) = (12,4)\\(x_2,y_2) = (20,8)$

Slope intercept form of line is given as:

$y = mx+b$

Here m is the slope of the line and b is the y-intercept.

Slope of a line is calculated by the formula:

$m = \frac{y_2-y_1}{x_2-x_1}$

Putting the values

$m = \frac{8-4}{20-12}\\m = \frac{4}{8}\\m=\frac{1}{2}$

Putting the value of slope in slope-intercept form we get

$y = \frac{1}{2}x+b$

To find the value of b, any one point will be put in the equation

Putting the first point (12,4) in the equation

$4 = \frac{1}{2}(12) + b\\4 = 6+b\\b = 4-6\\b = -2$

Putting the value of b

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

Hence,

Equation in slope-intercept form that goes through (12, 4) and (20,8) is: $y = \frac{1}{2}x-2$

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2 years ago

X/-4 + 14>20 someone help a girl out

MrRa [10]

Answer:

x < -20

Step-by-step explanation:

x / -4 + 14 >20

Subtract 14 from each side

x / -4 +14-14 > 20 -14

x / -4 > 6

Multiply each side by -4, remembering to flip the inequality

x / -4 * -4 < 6 * -4

x < -20

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3 years ago

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Eric would like to buy a new math folder for $2.22 and a case of mechanical pencils for $2.95. He would also like to buy sticker

MrMuchimi

Answer:

0.5x+5.17: 10.00

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3 years ago

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One number exceeds another by 1. the sum of the numbers is 21. what are the numbers

Cerrena [4.2K]

Try this solution:
1. if 1st number is 'x', the 2d number is 'y', then it is possible to make up the system of two equation according to the condition:
$\left \{ {{x-y=1} \atop {x+y=21}} \right. \ =\ \textgreater \ \ \left \{ {{x=11} \atop {y=10}} \right.$
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3 years ago