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mrs_skeptik [129]
2 years ago
5

How do i solve and graph y=x^2+5x+6

Mathematics
2 answers:
erastovalidia [21]2 years ago
8 0
Slope = 4
y-intercept = 6
hope this helps :)
Rasek [7]2 years ago
8 0

y=x^2+5x+6

To graph this equation we find x intercepts and vertex

To find x intercept we replace y with 0

0=x^2+5x+6

Factor the right hand side

0 = (x+3)(x+2)

x+3 =0  and x+2 =0

x=-3  and x=-3

So x intercept are (-3,0) and (-2,0)

Now we find vertex, vertex formula is x = \frac{-b}{2a}

y=x^2+5x+6 , a= 1 and b = 5

so x= \frac{-5}{2(1)}= -2.5

Now plug in -2.5 in y=x^2+5x+6

y=(-2.5)^2+5(-2.5)+6= -0.25

So vertex is (-2.5, -0.25)

The value of a=1 that is positive , so parabola opens upwards.

The graph is attached below.


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