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3 years ago

What is the value of the function y=2x−3 when x=−1 ?

Mathematics

1 answer:

frez [133]3 years ago

4 0

Hello :)

When x=-1
y=2×(-1)-3=-2-3= -5

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Drag and drop the constant of proportionality into the box to match the table. If the table is not proportional, drag and drop "

Nikitich [7]

The table is proportional and the constant of proportionality is 1.5

Step-by-step explanation:

Proportional relationships are relationships between two variables

where their ratios are equivalent

One variable is always a constant value times the other
The relation between the two variables represented graphically by a line passes through the origin point

The table:

→ x : 0 : 2 : 4 : 6

→ y : 0 : 3 : 6 : 9

To prove that y ∝ x find the ratio between each value of y with corresponding value of x

∵ $\frac{3}{2}=1.5$

∵ $\frac{6}{4}=1.5$

∵ $\frac{9}{6}=1.5$

∴ $\frac{y}{x}=k$

∴ k = 1.5

∵ The origin point is in the table

∴ y ∝ x

∴ The table is proportional

The table is proportional and the constant of proportionality is 1.5

Learn more:

You can learn more about proportional in brainly.com/question/10708697

#LearnwithBrainly

4 0

3 years ago

Read 2 more answers

The digit in the tens place of a two digit number is three times that in the units place. If the digits are reversed the new num

S_A_V [24]

We could do it with algebra. But we can also do it the long way, which is
shorter than the algebraic way.

The digit in the tens place is 3 times the digit in the units place.
So the number MUST be
31, or
62, or
93 .
It can't be anything else.

Now here they are again, with the reverse of each one:

31 . . . 13 The new number is 18 less.
62 . . . 26 The new number is 36 less.
93 . . . 39 The new number is 54 less.

Obviously, the original number is 62.

4 0

3 years ago

Kim planted sunflower seeds in a flower patch. The tallest sunflower grew 2.65 meters tall. The height of the shortest sunflower

eduard

Answer:

Its 2.31 meters

7 0

3 years ago

Is this a function?<br> A) Yes<br> B) No

Ray Of Light [21]

Answer:

yes

Step-by-step explanation:

because its arranged in well functional statement

5 0

3 years ago

Find the linear equation of the plane through the origin and the points (5,2,2) and (6,−1,1). equation:

Aleks [24]

The cross of the position vectors is
.. [5, 2, 2] × [6, -1, 1] = [4, 7, -17] . . . . . the normal vector of the desired plane

Since the origin is a point in the plane, its equation can be written as
.. 4x +7y -17z = 0

3 0

4 years ago