Answer:
The equation is 0.5x - 5= y
Answer:
x = 1
Step-by-step explanation:
Firstly we distribute: 2x - 2 + 3x = 3
Collect like terms: 5x - 2 + 3
Then add 2 to both sided to isolate 5x: 5x = 5
Divide both sides by 5: x = 1
Answer:
x=30
Step-by-step explanation:
2x=60
2(×)X=30
thus:
x= 60÷2
X =30
Answer:
(4,-5)
Step-by-step explanation:
This is an exponential function since the x is in the exponent's place instead of in the place of a "regular" variable. The first statement is true.
The initial value of this particular function is 3 (the other number is the multiplier), so choice 2 is NOT true.
The function increases by its multiplier, which is 2.5, so statement 3 is true.
The equation allows us to enter any x value we want to determine the y, so the domain is in fact all real numbers. So, this statement is also true.
If you were to graph this on a calculator, you would see that the range, the "allowed" y values for our function, do not touch or ever drop below the x-axis. That means that the range is all numbers greater than 0. So that statement is false. No matter what value we pick for x, we will NEVER get back a negative y value or that y = 0. For example, if x = 0, y = 3; if x = -5, y = .03; if x = -10, y = .0003; if x = 5, y = 292.97; if x = -100,
. Y will never be equal to 0 or less than 0.