ruffnekswife
11.07.2019 •
Mathematics
Find the x-intercepts of the parabola with
vertex (6,-5) and y-intercept (0,175).
write your answer in this form: (x1,,42).
if necessary, round to the nearest hundredth.
enter the correct answer.
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Ответ:
The x-intercepts are (5,0) and (7,0)
Step-by-step explanation:
we know that
The equation of a vertical parabola in vertex form is equal to
where
a is a coefficient
(h,k) is the vertex
In this problem we have
(h,k)=(6,-5)
substitute
Find the coefficient a
with the y-intercept (0,175) substitute the value of x and the value of y in the equation
For x=0, y=175
substitute
Find the x-intercepts
Remember that the x-intercepts are the values of x when the value of y is equal to zero
For y=0
simplify
square root both sides
therefore
The x-intercepts are (5,0) and (7,0)
Ответ: