As we have to solve for b, it means we have to isolate b
So first of all subtract from both sides
So we get
Now we need b , but its b^2 , so we can take square root on both sides.
taking square roots on both sides
Hence option B is correct
7: The point B (-8,5) is dilated from the origin with a scale factor of 12 . What are the coordinates of B'? A (−6,3) B (−4,2.5
1 answer:
Answer:
The correct option is option B.
The coordinate of B' is (-4,2.5).
Step-by-step explanation:
Formula of dilation:
Image = (pre-image)×(scale factor)
Scale factor:
The amount by which the shrinks or grows is called " scale factor".
- If the scale factor less than 1 then the shape shrinks.
- If the sale factor equal to 1 then the shape remains same.
- If the scale factor greater than 1 then the shape enlarged.
Given point is B(-8,5)
Scale factor is .
The co-ordinate of image B is
=(-4,2.5)
The coordinate of B' is (-4,2.5).
You might be interested in
Answer:
1. ÷
--->
2. --->
3. --->
4. -->
Step-by-step explanation:
Given that:
1.
Thus,
÷
=
÷
Flip the 2nd function, Q(x), upside down to change the process to multiplication.
2. =
Make both expressions as a single fraction by finding, the common denominator, divide the common denominator by each denominator, and then multiply by the numerator. You'd have the following below:
3. =
4.