Vertex aka max or min point is found by -b/2a in form
f(x)=ax^2+bx+c
f(x)=-1x^2+8x+20
vertex x value is -8/(2)(-1)=-8/-2=4
input back to find y value
f(4)=-(4^2)+8*4+20
f(4)=-16+32+20
f(4)=36
max (since the graph opens down) is (4,36)
axis of symmetry is the x coordinate
max is (4,36)
axis of symmetrry is x=4
Well just plug the two points in... y=7 x=2
3(7) + 2= 5
is that true or not?
3(7)
21
21+2= 23
23 is not equal to 5... so no it does not pass through the point (2,7)
Answer:
wenus.
Step-by-step explanation:
4 inches. hduruuruthtututuu4u4
Answer:
The answer for your question is C
I'm pretty sure it is 72.42237223 ( that's before rounding)
