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s344n2d4d5 [400]
3 years ago
7

Explain how a function graph can be used to help verify that a function is factored correctly

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
8 0

By factorising a function, you can find the value of x-intercepts by substituting f(x)=0

By plotting a graph, you can check the values of x-intercepts

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I thought this was much more easier for you! :)
monitta
Problem 1)

The base of the exponential is 12 which is also the base of the log as well. The only answer choice that has this is choice B.

======================================================================
Problem 2)

log(x) + log(y) - 2log(z)
log(x) + log(y) - log(z^2)
log(x*y) - log(z^2)
log[(x*y)/(z^2)]

Answer is choice D

======================================================================
Problem 3)

log[21/(x^2)]
log(21) - log(x^2)
log(21) - 2*log(x)

This matches with choice B

======================================================================
Problem 4)

Ln(63) = Ln(z) + Ln(7)
Ln(63)-Ln(7) = Ln(z)
Ln(63/7) = Ln(z)
Ln(9) = Ln(z)
z = 9

======================================================================
Problem 5)

Ln(5x-3) = 2
5x-3 = e^2
5x = e^2+3
x = (e^2+3)/5

This means choice A is the answer
4 0
3 years ago
Can someone help me i dont really get it?
Orlov [11]
Draw out a number line. Plot the values -86, 0 and +45. To go from -86 to 0, you need to travel 86 meters. Then to go from 0 to 45, you need to travel another 45 meters.

In total, you have gone 86+45 = 131 meters (in the up direction)
3 0
2 years ago
Read 2 more answers
8. Find the value of x. If your answer is not an integer, leave it in simplest radical form. The diagram is not drawn to scale.
Alchen [17]
 x = 9 / tan(30)
x = 9 sqrt(3)
8 0
3 years ago
Read 2 more answers
Answer please<br> Its for a timed test please answer
ruslelena [56]

Answer:

A.

Step-by-step explanation:

the absolute value of -5 = 5.

5+8=13.

Hope this helped.

3 0
2 years ago
Read 2 more answers
6. Explain why &lt;1 = &lt;2.
slavikrds [6]

Step-by-step explanation:

Since AC=BE & DE=DC

then measure angle <CAD=<EBD =X

Then< DAB =90-x

And <ABD= 90-X

then measure angle 1= measure angle 2

8 0
2 years ago
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