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natita [175]
3 years ago
15

the vertex of this parabola is at (-3,-1). when the y-value is 0, the x-value is 4. what it the coefficient of the squared term

in the parabolas equation?

Mathematics
2 answers:
madreJ [45]3 years ago
7 0

Answer:

Fot this parabola the coefficient for squared term is 7

Step-by-step explanation:

The formula for vertex equation is:

x = a*(y-h)^{2}+k

if vertex is at (-3,-1) and in the formula the vertex is (k,h), we replace this values

x = a*(y - (-1))^{2} + (-3)

x = a*(y +1)^{2} -3

The other point of this parabola is (4,0), so we replace it in the formula below:

4 = a*(0 + 1)^{2} -3

4 = a*(1)-3

4 +3= a*(1)

a=7

Len [333]3 years ago
3 0
<span>1/49 = a
 have a great day.
 
</span>
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