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olga_2 [115]
3 years ago
8

HELP PLEASE:

Mathematics
2 answers:
Afina-wow [57]3 years ago
6 0
Y - y1 = m(x - x1)
slope(m) = 2/5
(-4,-7)....x1 = -4 and y1 = -7....pay attention to ur signs
now we sub
y - (-7) = 2/5(x - (-4)...not done yet
y + 7 = 2/5(x + 4) <===
geniusboy [140]3 years ago
4 0

Answer:

Correct option is:

y+7=2/5(x+4)

Step-by-step explanation:

The point-slope form of the line with slope m and passing through the point (x1,y1) is given by:

y-y1=m(x-x1)

Here, we are given line with slope m=2/5

and passing through (x1,y1)=(-4,-7)

i.e. x1= -4 and y1= -7

y-(-7)=\dfrac{2}{5}(x-(-4))

y+7=\dfrac{2}{5}(x+4)

Hence, Correct option is:

y+7=2/5(x+4)

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Input in stand form the equation of the given line.
Daniel [21]

Answer:

  3x +8y = -17

Step-by-step explanation:

The point-slope equation is a good place to start.

  y -k = m(x -h) . . . . . equation through (h, k) with slope m

Filling in your numbers gives ...

  y +4 = -3/8(x -5)

Multiplying by 8, we get

  8y + 32 = -3x + 15

Adding 3x-32 puts this in standard form.

  3x + 8y = -17

_____

Standard form is ...

  ax +by = c

where a, b, c are mutually-prime integers and the leading coefficient is positive. (If a=0, the leading coefficient is b.)

8 0
3 years ago
find the slope/ rate of change of the two points. Identify whether it is positive, negative, undefined or zero. (0,15) and (16,-
weqwewe [10]

Answer:1.7 its positive

Step-by-step explanation: 0,15 .  16,-12

y1-y2/x1-x2

15-(-12)= 27

0-16= 16

27/16 = 1.7

4 0
3 years ago
Find the mean of the set of data. Use a calculator if necessary. (Remember to put the list in numerical order.)
kompoz [17]

Answer:

9.4

Step-by-step explanation:

How to find the mean of a data set: Add each number in the set together. Then divide the sum of all of the numbers by how many numbers there are.

5 0
3 years ago
Read 2 more answers
Jimmy borrowed $450 to start a lawn-mowing business. He charges $35 per lawn and it costs him $8 in operating costs per lawn.
Akimi4 [234]

Answer: $450

Step-by-step explanation:

Given that:

Amount borrowed = $450

Amount charged per lawn = $35

Operating cost per lawn = $8

Jimmy's cost (C(x)) :

Amount borrowed + operating cost

If x lawns are mowed :

$450 + $8 per lawn

$450 + $8x

C(x) = 450 + 8x

Intercept (value of y when x = 0

Value of C(x) ; when x = 0

C(x) = 450 + 8(0)

C(x) = 450 + 0

C(x) = 450

3 0
3 years ago
Find the area of the shaded region
Mrac [35]

Answer:

40.5

Step-by-step explanation:

Area of square is 9x9=81.

Area of triangle is 1/2(9)(9)=40.5

81-40.5=40.5

40.5 is the area of the shaded region.

4 0
2 years ago
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