Find the vertex of the graph of the following quadratic equations y= -3x^2 -12x-13

Mathematics

2 answers:

Igoryamba2 years ago

7 0

Answer:

Step-by-step explanation:

The vertex is a point. The x value is defined as x = - b / 2a where

a = -3

b = - 12

x = - -12/ 2* -3

x = 12 / - 6

x = -2

what is y when x = - 2?

y = -3(-2)^2 - 12(-2) - 13

y = -12 + 24 - 13

y = -1

Does the graph agree? It should

The equation is written as

y = -3(x + 2)^2 - 1

choli [55]2 years ago

3 0

By using the rule -b/2a —> 12/-6= -2

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Our club has 25 members, and wishes to pick a president, secretary, and treasurer. In how many ways can we choose the officers,

Rus_ich [418]

Answer:

13800

Step-by-step explanation:

The order of the members is important (because each selected member will receive a different position), thus we then need to use the definition of permutation.

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8 0

3 years ago

Plotting these two equations on a graph.<br><br> p=6-2q<br> p=4+q

Mekhanik [1.2K]

Put into slope intercept form, y=mx+b where m=slope
p=-2q+6
slope is -2
subsitute values for q and get values for p
q=0, p=6
(q,p)
(0,6)
(1,4)

p=q+4
slope is 1
subsitutte
q=0,p=4
(q,p)
(0,4)
(1,5)

below are the graphs