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2 years ago

Which ordered pair would form a proportional relationship with the point graphed below

Mathematics

2 answers:

butalik [34]2 years ago

8 0

Your answer should be b

mr_godi [17]2 years ago

6 0

Answer:

(15,-30) when y=-2x

Step-by-step explanation:

As you can see in the point in the graph the relationship between x and y would be y=-2x or y=x+60, but since proportional relationships require that y equals x times something that is not an option.

So we just have to evaluate the possibilities from the points given for this problem with the relationship found:

(-40,20)

y=-2x> y=-2(-40)> y=80> since y is not equal to 80 this one is wrong

(-10,-20)

y=-2x> y=-2(-10)> y=20 since y= 20 is not true this is wrong

(15,-30)

y=-2x> y=15(-2)> y=-30 since y=-30 this is correct

(5,-15)

y=-2x> y=-2(5)> y=-10 since y=-10 is not true, this is wrong

So after evaluating the options we know that the correct one that would create a proprotional relationship would be (15,-30)

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The difference of twice a number and 6 is less than - 18.

oee [108]

Answer:

2x-6<-18

Step-by-step explanation:

4 0

2 years ago

The value in dollars,v(x),of a certain truck after x years is represented by the equation v(x)=32,500(0.92)^x.To the nearest dol

Vika [28.1K]

Answer: $2193

Step-by-step explanation:

v(x) = 32,500 $(.92)^{x}$

Plug two and three in for x

v(2) = 32,500 $(.92)^{2}$

v(2) = 32,500(.8464)

v(2) = 27,500

v(3) = 32,500 $(.92)^{3}$

v(3) = 32,500(.778688)

v(3) = 25,307.36

Subtract v(3) from v(2)

27,500 - 25,307.36 = 2192.64

Round to the nearest dollar to get $2193

7 0

3 years ago

Josh is hiking Glacier National Park. He has now hiked a total of 17km, and is 2km short of being 1/2 of the way done with his h

slamgirl [31]

17 + 2 = 19 km is 1/2 of the total length, that is,

19 = (1/2)h

(1/2)h = 19 multiply both sides by 2

h = 2*19

h = 38 km

The total length in kilometers is 38 km

3 0

2 years ago

Write the standard form of the quadratic function whose graph is a parabola with the given vertex and that passes through the gi

maks197457 [2]

Answer:

The formula for this quadratic function is x*2 +6x+13

Step-by-step explanation:

If we have the vertex and one point of a parabola it is possible to find the quadratic function by the use of this

y= a (x-h)*2 + K

Quadratic function looks like this

y= ax*2 + bx + c

So let's find the a

y= a (x-h)*2 + K where

y is 13, x is 0, h is -3 and K is 4

13= a (0-(-3))*2 +4

13=9a +4

9=9a

9/9=a

1=a

The quadratic function will be

y= 1(x+3)*2 + 4

Let's get the classic form

(x+3)*2 = (x+3)(x+3)

(x*2+3x+3x+9)

x*2 +6x+13

f(0) = 13

6 0

3 years ago

Read 2 more answers

Can you please help me with this that’ll you so much

Nana76 [90]

Add the fractions together to find the portion who like basketball, soccer and football.

=1/3 + 1/8 + 5/12
need a common denominator (24)

=8/24 + 3/24 + 10/24
=21/24

simplify by 3
=7/8 like basketball, football & soccer

7/8 is the total for basketball, soccer and football. If 8/8 represents the whole class, then subtract 7/8 from 8/8 to find the number who like baseball.

=8/8 - 7/8
=1/8 of the remainder likes baseball

ANSWER: 1/8 of the students like baseball

Hope this helps! :)

4 0

3 years ago

Which ordered pair would form a proportional relationship with the point graphed below​

Which ordered pair would form a proportional relationship with the point graphed below