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jasenka [17]
4 years ago
12

Which equation represents the function whose data is shown in the table?

Mathematics
2 answers:
Travka [436]4 years ago
8 0

Then the answer is D), because in the equation y=2x-1, it is raising by 2 and the y-intercept is (0,-1)

sergeinik [125]4 years ago
6 0

Slope intercept form is:

y = mx + b

"m" is the slope, "b" is the y-intercept(the y value when x = 0)


To find "m" you can use the slope formula:

m =\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

And plug in 2 points from the table. I will be using the points (1 , 1) and (2, 3)

m =\frac{y_{2}-y_{1}}{x_{2}-x_{1}}

m = \frac{3-1}{2-1} =\frac{2}{1}=2


y = 2x + b

In the table, when x = 0, y is -1. So your y-intercept is -1


y = 2x - 1


Your answer is D

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8 0
3 years ago
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Soloha48 [4]

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Step-by-step explanation:

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5 0
3 years ago
(ar^b)^4=81r^24<br> where a and b are positive integers. <br> Work out a and b
galina1969 [7]

Answer:

Vales of a =3 and b = 6

Step-by-step explanation:

Given that: (ar^b)^4 = 81r^{24}            .....[1] where a and b are positive integers

we can write 81 and 24 as;

81 = 3 \cdot 3 \cdot 3 \cdot 3 = 3^4

24 = 4 \cdot 6

We have [1] as;

(ar^b)^4 = 3^4r^{4 \cdot 6}

Using power rules;

a^nb^n = (ab)^n

a^n = b^n which implies a = b

then;

(ar^b)^4 = (3r^6)^4

ar^b = 3r^6

On comparing both sides we have;

a = 3 and

r^b = r^6

⇒b = 6

Therefore, the value of a and b are, 3 and 6





6 0
4 years ago
Plz help me I’m stuck on those too
weeeeeb [17]

i got problems with tht stuff too D: i wish i was smart :P

5 0
3 years ago
Read 2 more answers
Whats the answer and how do you work it out?<br>5/12-1/4​
Sergio [31]

Answer:

\frac{5}{12}  -  \frac{1}{4}  \frac{ \times }{ \times }  \frac{3}{ 3 }  \\  \frac{5}{12}  -  \frac{3}{12}  \\  =  \frac{2}{12}  =  \frac{1}{6}

4 0
3 years ago
Read 2 more answers
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