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VladimirAG [237]
1 year ago
8

What is the slope of the line that contains the points (2, -7) and (-1, 5)?

Mathematics
1 answer:
love history [14]1 year ago
6 0
Hello there! Given the coordinates, we can solve for the slope through the formula:

slope = y2 - y1 over x2 - x1

5 - (-7) = 12

(-1) - 2 = -3

The slope of our line is -12/3. When converting, this gives us -4. Hope this helps!
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Jane borrows $4000 dollars from her bank.she has a simple interest loan at 5% interest rate and will pay it back over 4 years ho
Tom [10]
4000x.05=200*4= 800
4 0
3 years ago
Write a word problem that could be solved with the equation c+1.02=13.48
USPshnik [31]
Here is your word problem →

A boy had $1.02 with him , his friend Chucky gave him some amount of money and now he has $13.48 . How much money did Chucky gave to that boy.

Solution →

Let the money given by Chucky be c.

Therefore , According to question →

c + 1.02 = 13.48

or, c = 13.48 - 1.02

or, c = 12.46

Answer → Chucky gave him $12.46

____________________________________
8 0
3 years ago
Please help i need this
Svet_ta [14]

Slope Formula - (y² - y¹) / (x² - x¹)

(1, 7)

x¹ = 1

y¹ = 7

(-4, -8)

x² = -4

y² = -8

-8 - 7 = -15

-4 - 1 = -5

Simplify - -15/-5

-15/5 = -3

Your answer is -3.

Hope this Helps!!


5 0
3 years ago
Solve for x in the equation x squared + 2 x + 1 = 17.
Papessa [141]

Answer:

x = - 1 + \sqrt{17}\\and\\x = - 1 - \sqrt{17}\\

Step-by-step explanation:

given equation

x^2 +2x +1 = 17

subtracting 17 from both sides

x^2 +2x +1 = 17\\x^2 +2x +1 -17= 17-17\\x^2 +2x - 16 = 0\\

the solution for quadratic equation

ax^2 + bx + c = 0 is given by

x = x = -b + \sqrt{b^2 - 4ac} /2a \\\\and \ \\-b - \sqrt{b^2 - 4ac} /2a

________________________________

in our problem

a = 1

b = 2

c = -16

x =( -2 + \sqrt{2^2 - 4*1*-16}) /2*1 \\x =( -2 + \sqrt{4  + 64}) /2\\x =( -2 + \sqrt{68} )/2\\x = ( -2 + \sqrt{4*17} )/2\\x =  ( -2 + 2\sqrt{17} )/2\\x = - 1 + \sqrt{17}\\and\\\\x = - 1 - \sqrt{17}\\

thus value of x is

x = - 1 + \sqrt{17}\\and\\x = - 1 - \sqrt{17}\\

3 0
3 years ago
Let f(x) = 2x - 3. If f(x) = 15, what is x?
iragen [17]

Answer:

9=x

Step-by-step explanation:

6 0
3 years ago
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