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3 years ago

Consider a graph for the equation y= -3x+4. What is the y intercept?

Mathematics

2 answers:

exis [7]3 years ago

5 0

Answer:

Choice A is correct answer.

Step-by-step explanation:

y = mx+b is slope-intercept for equation of a line where m denotes slope and b denotes y-intercept of a line.

Slope is defined as the steepness of the line and it is denoted by m.

y-intercept is the point where the value of x is zero and it is denoted by any small letter.

Given equation is :

y = -3x+4

comparing above equation with general slope - intercept form , we get

m = -3 and b = 4

hence,y-intercept is 4.

Alexeev081 [22]3 years ago

3 0

Answer:

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 3x + 4 is in this form

with y- intercept c = 4 → A

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Madelyn is 1.85 meters tall. At 12 noon, she measures the length of a tree's shadow to be 39.75 meters. She stands 34.9 meters a

Margaret [11]

The relationship between her height and the tree's is an illustration of ratios and proportions

The height of the tree is approximately 2.11 meters

Her height is represented as:

$\mathbf{h =1.85}$

At 12 noon, the length of the tree's shadow and her distance from the shadow are given as:

$\mathbf{D =39.75}$

$\mathbf{d =34.9}$

To calculate the height (H) of the tree, we make use of the following equivalent ratios

$\mathbf{H : h =D : d}$

So, we have:

$\mathbf{H : 1.85 =39.75 : 34.9}$

Express ratio as fraction

$\mathbf{\frac{H }{ 1.85 }=\frac{39.75 }{ 34.9}}$

Multiply both sides by 1.85

$\mathbf{H=1.85 \times \frac{39.75 }{ 34.9}}$

$\mathbf{H=2.11}$

Hence, the height of the tree is approximately 2.11 meters

Read more about ratios and proportions at:

brainly.com/question/7810782

6 0

2 years ago

A baseball stadium has 15,002 seats. The lower level has 50 fewer than three times as many seats as the upper level. The middle

Svet_ta [14]

Answer:

upper level chairs = 2,502 chairs

Lower level chairs = 7,456 chairs

Middle level chairs = 5044 chairs

Step-by-step explanation:

A baseball stadium holds 15,002 seats. The lower level has 50 fewer than three times as many seats as the upper level. The middle level has 40 more than twice as many seats as the upper level. The upper level has( ) seats.

Total chairs in the stadium = 15,002

Let

upper level chairs = x

Lower level chairs = 3x - 50

Middle level chairs = 2x + 40

Total = lower level + middle level + upper level

15,002 = (3x - 50) + (2x + 40) + x

15,002 = 3x - 50 + 2x + 40 + x

15,002 = 6x - 10

15,002 + 10 = 6x

15,012 = 6x

x = 15,012 / 6

x = 2,502

upper level chairs = x = 2,502 chairs

Lower level chairs = 3x - 50

3(2,502) - 50

= 7506 - 50

= 7,456 chairs

Middle level chairs = 2x + 40

= 2(2502) + 40

= 5004 + 40

= 5044 chairs

8 0

3 years ago

Free points (5+5+10)×100

ollegr [7]

Answer:

20000

Step-by-step explanation:

you do 5 plus 5 then add it to 10

then u get 200 which u times it by 100

8 0

3 years ago

Read 2 more answers

Draw a box and whisker plot of the following data 40,37,29,36,41,39,33

Setler79 [48]

Answer:

Step-by-step explanation:

Its not the best drawing but here

median 37

minimum 29

maximum 41

first quartile 33

third quartile 40

IQR 7

4 0

3 years ago

Find the interior angle on a regular polygon with 45 sides...

PolarNik [594]

The exterior angles sum to 360º. Let x be the measure of each exterior angle. Then

45x = 360º ==> x = 8º

Then each interior angle (which is supplementary to an exterior angle) has measure (180 - x)º, so they have measure 172º.

3 0

3 years ago