All categories

4 years ago

URGENT! Complete the equation describing how ex and Y related! Help on the last part please!

Mathematics

1 answer:

Nikolay [14]4 years ago

7 0

Answer:

y = - 0.5x - 1

Step-by-step explanation:

The equation is of the form

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

m = - 0.5 is already given as y = - 0.5x

Using the ordered pair (0, - 1 ) ⇒ c = - 1

Thus

y = - 0.5x - 1 ← is the equation

You might be interested in

What is the reason for each step in the solution of the equation?

iVinArrow [24]

4x-1=-2(x+1)
Distribute
4x-1=-2x-2
Move variable to left and change signs
4x+2x=-2+1
Combine like terms
6x=-1
Divide both sides by 6
X=-1/6

4 0

3 years ago

I need help in 19.b.

icang [17]

2.1 gigabytes have been downloaded so far

6 0

3 years ago

The line AB is shown on the grid.

Ilya [14]

Answer:

1) The gradient of a line perpendicular to AB.→ [-2}

2) The equation of the line perpendicular to AB and passing

through the midpoint of AB. →[y=-2x+6]

$---------$

hope it helps....

have a great day!!

3 0

3 years ago

Read 2 more answers

Use the four-step process to find f'(x) and then find f'(1), f'(2), and f'(3).

Soloha48 [4]

Step 1: evaluate f(x+h) and f(x)

We have

$f(x+h) = -(x+h)^2+6(x+h)-5 = -(x^2+2xh+h^2)+6x+6h-5$

$= -x^2-2xh-h^2+6x+6h-5$

And, of course,

$f(x)=-x^2+6x-5$

Step 2: evaluate f(x+h)-f(x)

$f(x+h)-f(x)=-x^2-2xh-h^2+6x+6h-5-(-x^2+6x-5)=-2xh-h^2+6h$

Step 3: evaluate (f(x+h)-f(x))/h

$\dfrac{f(x+h)-f(x)}{h}=-2x-h+6$

Step 4: evaluate the limit of step 3 as h->0

$f'(x) = \displaystyle \lim_{h\to 0} \dfrac{f(x+h)-f(x)}{h}=-2x+6$

So, we have

$f'(1) = -2\cdot 1+6 = 4,\quad f'(2) = -2\cdot 2+6 = 2,\quad f'(3) = -2\cdot 3+6 = 0$

5 0

3 years ago

In the triangle ABC shown below, DE is parallel to BC. Find the length of DB.

allsm [11]

Answer:

i think it's 10 because if DE is 10 so BD is the same think it's 10

8 0

3 years ago