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3 years ago

11

Please help me with this homework

2 answers:

Alex17521 [72]3 years ago

8 0

2/4 there’s 4 rectangles in total and only 2 are colored in

balandron [24]3 years ago

7 0

Answer:

2 over 4 because 2 are colored out of 4 so on top 2 on bottom 4

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.........??????????????

Oliga [24]

Answer:

<em>The table shows a proportional relationship: YES</em>

<em>The constant of proportionality is k=7</em>

<em>y = 7x</em>

Step-by-step explanation:

<u>Proportions</u>

A direct proportion is a relation between variables where their ratio is a constant value. This means that if y and x are proportional, then:

y = kx

Where k is the constant of proportionality. It can be calculated by solving the equation for k:

$\displaystyle k=\frac{y}{x}$

We are given a table with 4 pairs of values. If the relationship between the variables is proportional, then the ratio y/x should be constant.

Let's verify some points:

$\displaystyle k=\frac{63}{9}=7$

$\displaystyle k=\frac{28}{4}=7$

$\displaystyle k=\frac{14}{2}=7$

$\displaystyle k=\frac{77}{11}=7$

Since all the ratios are equal,

The table shows a proportional relationship: YES

The constant of proportionality is k=7

The equation for the relationship is

y = 7x

7 0

3 years ago

n200080 [17]

Answer:

See below

Step-by-step explanation:

<u>Zeroes</u>

$f(x)=2(x-1)(x+3)$

$0=2(x-1)(x+3)$

$0=(x-1)(x+3)$

$x=1$ and $x=-3$

$(1,0)$ and $(-3,0)$

<u>Axis of Symmetry</u>

$f(x)=2(x-1)(x+3)$

$y=2(x-1)(x+3)$

$y=2(x^2+2x-3)$

$y+2(4)=2(x^2+2x-3+4)$

$y+8=2(x^2+2x+1)$

$y+8=2(x+1)^2$

$y=2(x+1)^2-8$

$y=a(x-h)^2+k$

$x=h$

$x=-1$

<u>Vertex</u>

$y=a(x-h)^2+k$

$y=2(x+1)^2-8$

$(h,k)\rightarrow(-1,-8)$

<u>Y-intercept</u>

$f(x)=2(x-1)(x+3)$

$f(0)=2(0-1)(0+3)$

$f(0)=2(-1)(3)$

$f(0)=-6$

$y=-6$

$(0,-6)$

Please review the attached graph for a visual of these key features.

5 0

3 years ago

Solve this problem please

sasho [114]

1.0465 is what I got.

7 0

3 years ago

Read 2 more answers

Put the following equation of a line into slope-intercept form, simplifying all

anzhelika [568]

Answer:

y = x + 7

Step-by-step explanation:

3y - 3x = 21

3y/3 - 3x/3 = 21/3

y = x + 7

3 0

3 years ago

Which of the following are the correct properties of slope?

olchik [2.2K]

Answer:

I think one of them may be C and B but I'm not sure

4 0

3 years ago