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3 years ago

Which ordered pair is a reflection of (3,7) across the x-axis?

Mathematics

1 answer:

Alla [95]3 years ago

5 0

Answer:

(3,-7)

Step-by-step explanation:

Using the algebraic rule for Rx-axis

(x,y)---->(x,-y)

(3,7)--->(3,-7)

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What does (f(x)) mean in math for a input and output graph?

shtirl [24]

In maths, f (x) means as a special relationship where every single input has one output.

Step-by-step explanation:

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3 years ago

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Vsevolod [243]

Answers:

a) True. Plug in x = 0 and it leads to y = c. Therefore, the point (0,c) is on the parabola.
b) False. Plug in y = 0 and apply the quadratic formula. One x intercept may sometimes be x = c, but it could easily be other values as well. Or perhaps you may not get any real number solutions at all. See part d) below.
c) True. If a < 0, then the leading coefficient is negative. Overall, both endpoints will tend toward negative infinity to produce a parabola that opens downward.
d) False. The quadratic may have one x intercept or it may not have any x intercepts at all. It depends on what the discriminant d = b^2 - 4ac is equal to. If d < 0, then we have no x intercepts. If d = 0, then we have exactly 1 x intercept. If d > 0, then we have two different x intercepts.
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Rashid [163]

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3 years ago

2(x−3)=8(x−6) what is x?

uysha [10]

Answer: x = 7

Step-by-step explanation:

2x - 6 = 8x - 48

+48

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-2x

42 = 6x

7 = x

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3 years ago

Read 2 more answers