Answer:
B. The value of C is 1
Step-by-step explanation:
Given:
- y = 2x + C is a tangent to parabola y² = 8x
To find:
A line being a tangent to curve means both equations are equal but there has to be only one interception between both graphs.
Therefore, substitute y = 2x+C in y² = 8x:
Expand the expression (2x+C)² using perfect square:
Simplify the equation:
The discriminant says:
- If b²-4ac > 0 then there are two real roots
- If b²-4ac = 0 then there is only one real root
- If b²-4ac < 0 then the are no real roots
For this, we choose b²-4ac = 0 since tangents only have one intersection.
Solve the equation for C:
Therefore, the value of C is 1
Answer:
14 dollars 40 cents or $14.40
Step-by-step explanation:
18*.8 is 14.4
Factor out w11 out of 4w11 – w12
w^11 (4 - w)
Answer:
C(t)=0.10t + 25
Step-by-step explanation:
gradient = change in y/ change in x = 5/50 = 0.10
the y intercept is 25
so the equation is y = 0.1t + 25
The is a because Y = x is 21 and 544 is 21