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anzhelika [568]
3 years ago
12

7th grade math , I’ll give brainliest

Mathematics
2 answers:
brilliants [131]3 years ago
4 0

Answer:

3. 11

4. -8

Step-by-step explanation:

Whenever a negative number inside the lines, they always turn positive, including positive numbers.

pantera1 [17]3 years ago
3 0

Answer:

3. 11

4. -8

Step-by-step explanation:

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Find the x-intercept of the parabola with vertex (1,-13) and y-intercept (0,-11).
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1. find equation

general solutions are:
y = a x^{2} +bx +c \\ \\ \frac{dy}{dx} = 2ax +b

for P(0,-11)

-11 = 0a + 0b +c ⇒c = -11

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y = 2 x^{2} -4x -11

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Its 23. you just add them together
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