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SSSSS [86.1K]
3 years ago
14

Which equations have a unit rate of change of 4.5 ? select 2 answers

Mathematics
1 answer:
Maurinko [17]3 years ago
3 0

Answer:

Options A and C

Step-by-step explanation:

<u>To have a unit rate of change of 4.5 means to have the slope at 4.5</u>

A.  y = 62 + 4.5x  GOOD

B.  c = 4.5 + 3h - 1  WRONG

C.  c = 12 + 4.5h - 4.5  GOOD

D.  y = 3.5x + 1  WRONG

E.  y = 4.5  + 20x WRONG

Answer:  Options A and C

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What is an equation of the line that is perpendicular to y=−23x+5 and passes through the point (2, 11) ?
hichkok12 [17]

Answer:

The equation would be y = 1/23x - 251/23

Step-by-step explanation:

To start, you need to locate the slope of the first equation. Since the slope is the coefficient of x, we know it to be -23. Now, the perpendicular slope is the opposite and reciprocal of that, which makes the new slope 1/23.

Now that we have this, we can use the point and the slope in point-slope form to get the equation.

y - y1 = m(x - x1)

y - 11 = 1/23(x - 2)

y - 11 = 1/23x - 2/23

y = 1/23x - 251/23

5 0
3 years ago
Read 2 more answers
Find f (2b^2) for (x)=x^2-4x
BlackZzzverrR [31]

Answer:

A

Step-by-step explanation:

We are given the function:

f(x) = x^2 - 4x

And we want to find:

\displaystyle f(2b^2)

Substitute:

\displaystyle f(2b^2) =(2b^2)^2 -4(2b^2)

And evaluate:

\displaystyle \begin{aligned}  f(2b^2) &=(2b^2)^2 -4(2b^2) \\ &=(4b^4) +(-8b^2) \\ &= 4b^4 - 8b^2 \end{aligned}

In conclusion, our answer is A.

7 0
3 years ago
Solve using substitution.<br><br> y = –1<br> 2x − y = –1
irakobra [83]
X =1 I had this question
8 0
2 years ago
Read 2 more answers
Please help asap !!!!!
Rashid [163]

Answer:

\dashrightarrow \: { \tt{3.{ \bar{42},  \: \: 0,  \: \:  \frac{17}{9}, \:   \: \frac{7}{3} , \:  \:  - 6, \:  \: 8 }}}

Step-by-step explanation:

• A rational number is a number which can have a denominator i.e fraction, integers [ have denominator of 1 ]

6 0
3 years ago
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I will mark you. i need help fast thank you!
Ganezh [65]

Answer:

If I'm correct it should be the second one

Step-by-step explanation:

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3 years ago
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