Answer:
Step-by-step explanation:
The given function is
and the inverse function is
To find f(2), we substitute x=2 into the function f(x)=½x
This implies that,
Similarly,
Based on the above results,
Answer:
-4+1+7x
Step-by-step explanation:
Answer:
14.8
Step-by-step explanation:
2 + 5 × 4 - 8 - (-4/5)
Solve for brackets.
2 + 5 × 4 - 8 + 4/5
Multiply.
2 + 20 - 8 + 4/5
Add or subtract.
= 74/5
Answer:
The y-coordinate of their intersection point is 3
That is y=3
Step-by-step explanation:
Given two lines are y=6x+15 and y=mx+4
Given that the two lines intersect at x=-2
To find the y coordinate of their intersection point :
Equating the two lines
6x+15=mx+4
6x+15-mx-4=0
6x-mx+11=0
(6-m)x+11=0
At x=-2 (6-m)x+11=0
(6-m)(-2)+11=0
(6-m)(-2)=-11
Substitute the value in y=mx+4 we get
At x=-2
Therefore y=3
Therefore the y-coordinate of their intersection point is 3