The answer to this question is:
y = -2x - 1
Answer:
(x - 
)² + 
Step-by-step explanation:
x² - 5x + 8
Using the method of completing the square
add/subtract ( half the coefficient of the x- term )² to x² - 5x
x² + 2(- )x + 
- + 8
= (x - )² - + 
= (x - )² +
Formula of direct variation is: y = kx
k is the constant of variation
y is the total value that is directly varies with the changes in x.
in this case. x is represented by a. y is represented by b.
A.) b = 0.7a ⇒DIRECT VARIATION with 0.7 as the constant of variation
B.) b = 1/8 a⁻³ ⇒ Not a direct variation. Because a has a negative exponent
C.) 5(1/a) = b ⇒ Not a direct variation
D.) 1a = b ⇒ DIRECT VARIATION with 1 as the constant of variation
General exponential equation
y = A(1+r)^x
where
A = initial value
r = rate increase (+) or decrease (-)
x = time period of the change
y = projected value
y = 300(1.05)^x
in this problem, x = years after 2017
we want to find an x that makes the value more than or equal to 650
650 <= 300(1.05)^x
Answer:
E and F
Step-by-step explanation:
I would guess because the shown diagram has a closed line segment, meaning its not A or C because they are ever lasting, B and D is considered a Ray since its going non stop one way, leaving E and F
