B (7,-3) C (6,-),
A (4,-9)
What is the y-coordinate of point C?
OA A
OB. -5
Oc. -6
OD. -7

Step-by-step explanation:

Given

Required

The y coordinate of C

Since A, B and C are on the same line, the slope of AB and the slope of AC will be the same.

Slope (m) is calculated as:

For AC

For AB

So, we have:

and

Multiply both sides by 2

Solve for y

Hence, the y coordinate of C is -5

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1