Answer:
(x) = x + 8
Step-by-step explanation:
let y = f(x) and rearrange making x the subject, that is
y = 9(x - 8) ← divide both sides by 9
= x - 8 ( add 8 to both sides )
+ 8 = x
Change y back into terms of x with x = (x) , thus
(x) = x + 8
Step-by-step explanation:
4( 2x - 1) + 5 = 3 + 2(x + 1)
8x - 4 + 5 = 3 + 2x + 2
Solving like terms
8x + 1 = 2x + 5
Bringing like terms on one side
8x - 2x = 5-1
6x = 4
For finding the value of x
X = 4/6 = 2/3
Answer:
f(2) means multiply it by 5 and then subtract 1.
--> f(x) =5x-1
--> f(-2) = 5(-2)-1
--> f(2-) = -10-1
--> f(-2) = -11
Step-by-step explanation:
Answer:
25%.
Step-by-step explanation:
As a fraction it will be (50 - 40)/ 40 = 10/40 = 1/4.
% change 1/4 * 100 = 25%.
Answer: h(x) has the lowest y intercept
The answer is choice C
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Explanation:
f(x) has the y intercept 2 since the point (0,2) is on the f(x) curve. This is where the curve goes through the y axis
g(x) has the y intercept 24. This is the initial number of donuts he starts with (1 dozen = 12; 2 dozen = 2*12 = 24)
h(x) has the y intercept 1
The equation y = 6x+1 is in the form y = mx+b where b = 1 is the y intercept
Alternatively, plug in x = 0 and it leads to y = 1
So we see that h(x) has the smallest y intercept