study algebra .

Question 1

arithmetic sequences

Answer 1

an=a1+(n-1)d

Question 2

slope intercept form

Answer 2

y=mx+b mx=slope B= y-intercept

Question 3

geometric sequences

Answer 3

an=a1(r n-1)

Question 4

standard form linear function

Answer 4

Ax+By=C

Question 5

Vertex form

Answer 5

y=a(x-n)squared +k

Question 6

slope formula

Answer 6

m=ysub2 minus ysub1 over xsub 2 minus xsub1

Question 7

standard form quadratic

Answer 7

y=ax squared+bx+c

Question 8

axis of symmetry formula

Answer 8

x= -b over 2(a)

Question 9

standard exponential function

Answer 9

y= a times b to the x power.
rate growth :y= a(1 +r) to the power t
decay: y=a(1-r) to power of t

Question 10

point slope form

Answer 10

Y-Y sub 1 = m (x-x sub 1)

Question 11

quadratic formula

Answer 11

x=-b + or minus the squared root of b squared minus 4 ac over 2a

Question 12

point vertex

Answer 12

(x,f(-b over 2 a)

1. find the axis of symmetry x=-b over 2(a)
2. replace axis of symmetry value into the equation then solve for y.

Question 13

recursive

Answer 13

an=r(an-1)