12a)
5x + 45 + 3x - 25 = 180
8x + 20 = 180
8x = 160
x = 20
12b)
2x - 5 = 2(20) - 5 = 40 - 5 = 35
3x - 25 = 3(20) - 25 = 60 - 25 = 35
y = 180 - (35+35)
y = 180 - 70
y = 110
Answer:
The function has a domain of all real numbers.
The function has a range of {y|–∞ < y <∞ }.
The function is a reflection of y=∛x
Step-by-step explanation:
Given:
f(x)=-∛x
domain is set of all values that x can take for which the function is defined, so
for above function domain= set of all real numbers
range is set of values that corresponds to the set of values of domain, so for given f(x) range={y|–∞ < y <∞ } set of real numbers
Now f(x)=-∛x hence its reflection will be
-f(x)=-(-∛x)
y=∛x !
The y-int is (0, 0.4) and the x-int is (0.3,0).
Answer:
This is a function because each x value has a different y value. If one of x values would of had two different y values then it would of not have been a function
Step-by-step explanation:
The graph slanted from left to right.
4x + 2y = 8
-4x
2y=8-4x
divide the equation by 2 since you only need on y. -2x+8 =y
it's a negative x so the graph would be from upper left to lower right.
