Use the graph to find the x-intercept for the equation y + 2 = 2(x + 3).
Graph; y +2 = 2(x + 3)
1 y
x
y
The x-intercept is
6
4
(-2,0)
2
(0,4)
(
20)
-6
-2
2
4
6
(4.0)
Draw
Click or tap the graph to plot a point.
Intro
n

e.

step-by-step explanation:

because there are always 10 numbers in a phone number.

wholesale price is the initial price before markup. retail price comes after the markup.

a price of 8 bucks that's marked up by 100%   is

formula: initial price + (percent markup in fraction/decimal)(initial price)

8+(1)(8)

8+8

16

retail price is $16.

8

step-by-step explanation:

just put √(2) * √(32) into a calculator. that will make the answer be 8.

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places