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Arada [10]
3 years ago
8

Whats the equation of the straight line on this graph a) y=3x+4 b) y=2x+4 c) y=4x+4

Mathematics
1 answer:
polet [3.4K]3 years ago
3 0
B. y=2x+4
hope this helps, have a great day!
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Write the slope intercept form of the equation given the point (-2,4) and a slope of 3
Hitman42 [59]

Given the points:

(x, y) ==> (-2, 4)

slope, m = 3

To write the slope intercept form, use the form below:

y = mx + b

Where m = slope and b = y-intercept.

Now, substitute -2 for x, 4 for y, and m for 3 in the equation above to solve for b.

We have:

y = mx + b

4 = 3(-2) + b

4 = -6 + b

Add 6 to both sides:

4 + 6 = -6 + 6 + b

10 = b

b = 10

Therefore, the slope intercept form of the equation is:

y = 3x + 10

ANSWER:

y = 3x + 10

7 0
1 year ago
What is the unit rate if the candy is $7.80 for 2 pounds?
shutvik [7]

Answer:

= 3.9 candy per pound

Step-by-step explanation:

This is a fraction equal to

7.8 candy ÷ 2 pounds

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 2

7.8 candy        ÷ 2

________

2 pounds ÷ 2

=  

3.9 candy

_______

1 pound

=  

3.9 candy

_______

pound

= 3.9 candy per pound

7 0
2 years ago
Which function is the inverse of f Superscript negative 1 Baseline (x) = negative one-fifth x minus four-fifths?
DedPeter [7]

Answer:

f(x) = -5x - 4

Step-by-step explanation:

We want to get the inverse of the following function:

f^-1(x) = (-1/5)x - 4/5

To do that, we have to replace x with f(x) and f^-1(x) with x, as follows:

x = (-1/5)f(x) - 4/5

And then solve for f(x), the inverse of f^-1(x).

x + 4/5 = (-1/5)f(x)

f(x) = -5x + (-5)4/5

f(x) = -5x - 4

To check our result we compute a pair (x, f(x))

x   f(x)

1   -5*1 - 4 = -9

which has to be equivalent to (-9, 1) in the original function

x      f^-1(x)

-9     (-1/5)*(-9) - 4/5 = 1

5 0
3 years ago
Read 2 more answers
Plez help will give brainliest
sertanlavr [38]

Answer:

put a picture please

Step-by-step explanation:

3 0
3 years ago
Help me with this and answer letters a and b
Darya [45]

Answer:

Step-by-step explanation:

a)  a = 2*2.99- (2.99 +1.49)

     a = 5.98 - 4.48

     a = $1.50

r = 2* 3.99 - (3.99 + 2.49)

r = 7.98 - 6.48

r = $ 1.50

B) Both fruits has the same discount.

4 0
3 years ago
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