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Bingel [31]
3 years ago
14

A line with a slope of –2 passes through the point (–4, 8). What is the equation of the slope-intercept form?

Mathematics
1 answer:
zloy xaker [14]3 years ago
8 0

Answer:

y= -2x

Step-by-step explanation:

The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.

Given that the slope is -2, m= -2.

subst. m= -2 into the equation:

y= -2x +c

To find the value of c, substitute a coordinate.

When x= -4, y=8,

8= -2(-4) +c

8= 8 +c (expand)

c= 8-8 (-8 on both sides)

c=0 (simplify)

Thus, the equation of the line is y= -2x.

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a total of $7000 is invested: part at 6% and the remainder at 10%. How much is invested at each rate if the annual interest is $
Veronika [31]

Answer:

680

Step-by-step explanation:

3 0
2 years ago
Order these numbers from smallest to largest:
babymother [125]

Answer:

Order from Least to Greatest

24/15 < 1 7/10 < 1 15/18

Step-by-step explanation:

Using the given inputs:

1 7/10 1 15/18 24/15

Rewriting all inputs as fractions:

1 7/10 1 15/18 24/15

17/10 33/18 24/15

The least common denominator (LCD) is: 90.

Rewriting as equivalent fractions with the LCD:

1 7/10 1 15/18 24/15

153/90 165/90 144/90

Sorting this table by the numerators of the equivalent fractions in order from least to greatest:

24/15   1 7/10   1 15/18

144/90 < 153/90 < 165/90

Therefore, the sorted inputs in order from least to greatest is:

24/15 < 1 7/10 < 1 15/18  Thank you :)

4 0
3 years ago
Read 2 more answers
I need help withy these questions.
Alekssandra [29.7K]
The little square means 90° and a straight line means 180° so 180 minus 68° minus 90° is 22° which leaves,
1) 112° and since you can flip 68° exacly the same on both sides it is a vertical angle which means
3)68.
4) 90°
8 0
4 years ago
15 POINTS EACH!!!~<br> Please See If You Know The Answer To Both Thank You!
valentina_108 [34]

Answer:

p(green) = 3/10

p(red) = 5/10

(you can of course reduce)

Step-by-step explanation:

Probability is just a big word for a simple concept

Probability of green marbles = number of green marbles over total number of marbles.

Probability of red marbles = number of red marbles over total number of marbles.

Don't over complicate it :)

6 0
3 years ago
Which is the inverse of the function f(x)= x+3
tatuchka [14]
Answer is C
let \: y \:  = x + 3
make \: x \: subject \: of \: the \: formula
x = y - 3

replace x with y above
f {}^{ - 1}  = x - 3

4 0
3 years ago
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