The given function is
f(x)= 0.2 x²
Since f(x) will be defined for all real values of x.
So, Domain of f(x) will be ( x| x is a real number.)→This is set builder notation.
Finding the inverse of f(x):
y = 0.2 x²
→ x²= 5 y
→x = → → Inverse of f(x)
Replacing x by y and y by x,we get inverse of the given function
y = → →Domain x ≥ 0, x∈[0,∞]
Graph of function and its inverse are shown below.
Answer:
Step-by-step explanation:
0.1 x + 40 = 76.5
0.1x = 36.5
x = 36.5 ÷ 0.1 = 365
Answer:
1 and 7
Step-by-step explanation:
The <em>slope </em>is the number before x. It is identified as m.
Since we know that any variable by itself, without a coefficient, means that there's a 1 in front of it, we can say that 1 is the slope because there's no coefficient shown.
The <em>y-intercept</em> is the number added or subtracted after the slope and x.
Since we have +7 coming after x, we can say that the y-intercept is 7.
:)
THREE EXAMPLES PRONOUNCIATION
1) 0.67 sixty-seven hunderths
2)4.98 four and ninty- eight hunderths
3)6.007 six and seven thousandths