Y=2x²-x+4
1) we have to find the slope of this line.
we have to calculate the first derivative of this function.
y´=4x-1
The slope in x=3 will be: m(3)=4(3)-1=12-1=11.
2)We have to find a point of this line:
if x=3; ⇒y=2(3)²-3+4=18-3+4=19; Our point will be (3,19)
2) point-slope form: we need a point (x₀,y₀) and the slope.
y-y₀=m(x-x₀)
We know the slope (m=11) and the point (3,19); therefore:
y-19=11(x-3)
y=11x-33+19
y=11x-14
Answer: A. y=11x-14
Truer words are seldom if ever written.
Answer:
Answer is C
Step-by-step explanation:
Answer:
system of function:
f(x)=.5x+6
f(x)=x^2; x > 2
Step-by-step explanation:
there's a screenshot attached. Explanation: I'm using desmos and just type the functions like what the screenshot did to graph the piecewise function made by two functions
Answer:
See below.
Step-by-step explanation:
I think you're supposed to solve the problem explaining all steps, and then copy the answer to the top.