:a major league baseball hitter who faces a pitcher that throws 90 miles per hour can bat a ball with an exit velocity of 40 miles per hour. the altitude, h(x) , in feet, of the baseball x seconds after being hit can be modeled by the function, h(x)=? 16x2+40x+6 .? use this information to answer parts a, b and c. ? part a does the parabola increase, decrease or both? ? ? ? ? part b after how many seconds will the baseball land on the ground? round your answer to the nearest hundredth. ? seconds ? part c what is the maximum height of the batted baseball? round your answer to the nearest hundredth. ? feet

an = 22 + (n-1) *6

110 seats

step-by-step explanation:

an=a1+(n-1)(d)

a1 = 22   this is the first item in the sequence

d =6   this is how the sequence goes up

a)   an = 22 + (n-1) *6

b) a12 = 22 + (12-1) *6

    a12 = 22+11*6

  a12 = 22 +88

  a12 = 110

one way is to plot 2 points and connect them which is what the answer choices seem to be doing

it seems to be using the y intercept and the slope

y=mx+b, m=slope, b=y-intercept (where the line hits the y axis)

slope=rise/run

y-intercept is where the line croses the y axis which is the y value where x=0

you seem to have given the wrong slope (you didn't put a number in front of te x, it should be 2/3 or 3/2 looking at the answer options)

y=? x-1

m=? because of your fault

b=-1

so it has a slope of ? and y intercept of -1, meaning it pases through (0,-1)

so draw point (0,-1) (so answer is one of the first 2 option)

if slope is 2/3, then go up 2 and right 3 then draw line through those 2 points

if slope is 3/2, then go up 3 and right 2 then draw line through those 2 points

sometimes it can be so they can fit in with a certain group, and others are just like that because of their personality.