Answer:
x = 4/5
Step-by-step explanation:
Subtract 3/x+4, then multiply by x/5:
_____
If you meant 3/(x+9) = 7/(x+4), you need to write it with parentheses around the denominator. (In that case, x=-12.75.)
Answer:Ohh yea
Step-by-step explanation:
Page 166 please
Which of the following relations has a domain of {−5, 0, 5}? {(−5, 0), (0, 5), (1, 0)} {(−5, 5), (0, 5), (5, 5)} {(0, −5), (0, 0
andreev551 [17]
Answer:
It's so easy. Domain is the set made up of the first elements of each ordered pair (x, y).
Look at the second relation {(-5, 5), (0, 5), (5, 5)}. It has three ordered pairs which arw (-5, 5), (0, 5) and (5, 5).
First element of the first ordered pair (-5, 5) is -5. First element of the second ordered pair (0, 5) is 0. First element of the third ordered pair (5, 5) is 5.
So, the set made up of the first elements of the ordered pairs is {-5, 0, 5} and hence it is the domain.
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The function f(x) is vertically compressed to form g(x) while the function f(x) is vertically compressed and then reflected across the x-axis to form h(x)
<h3>How to compare both functions?</h3>
The functions are given as
f(x) =x^2
g(x) =3x^2
h(x) = -3x^2
Substitute f(x) =x^2 in g(x) =3x^2 and h(x) = -3x^2
g(x) =3f(x)
h(x) = -3f(x)
This means that the function f(x) is vertically compressed to form g(x)
Also, the function f(x) is vertically compressed and then reflected across the x-axis to form h(x)
See attachment for the functions g(x) and h(x)
Also, functions f(x) and g(x) have the same domain and range
While functions f(x) and h(x) have the same domain but different range
The complete table is:
x -2 -1 0 1 2
g(x) 12 3 0 3 12
h(x) -12 -3 0 -3 -12
Read more about function transformation at:
brainly.com/question/13810353
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Answer:
y = - x - 2
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y-intercept )
to calculate m use the gradient formula
m = ( y₂ - y₁ ) / ( x₂ - x₁ )
with (x₁, y₁ ) = (- 5, 4) and (x₂, y₂ ) = (5, - 8)
m = = = -
y = - x + c ← is the partial equation
to find c substitute either of the 2 points into the partial equation
using (5, - 8), then
- 8 = - 6 + c ⇒ c = - 8 + 6 = - 2
y = - x - 2 ← is the equation of the line