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3 years ago

Which graph represents a proportional relationship?

Mathematics

2 answers:

ruslelena [56]3 years ago

6 0

Answer:

The first one

Step-by-step explanation:

On a graph, if the line starts at the origin, where the 0 is, which is the center in this case, it is proportional

On a table, if the numbers all the have the same rate of change, which is y/x, then it is proportional

Rus_ich [418]3 years ago

5 0

The first one it goes through the middle

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The product of the slopes of perpendicular lines is ?1. Which function represents a line that is perpendicular to y = ?6x + 7?

kolbaska11 [484]

Answer:

See below

Step-by-step explanation:

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4 years ago

Convert the cartesian equation x2 +y2=16 to a polar equation

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X^2+y^2 = 16
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The polar form of the equation is simply r = 4. Why is this? Because the radius is fixed to be 4 no matter what happens with theta. As theta goes from 0 to 360, the points generated all form a circle centered at (0,0) with radius 4.

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4 years ago

A student taking a test consisting of 10 questions is told that each questions after the first is worth 2 marks more than the pr

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Answer:

Student can obtain 15 marks by attempting 8 questions.

Step-by-step explanation:

This question is incomplete; complete question is here.

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A students when attempts the questions the sequence formed by the scores he gets will be in the form of a, (a + 2), (a + 4), (a + 6)........

Which will be an arithmetic sequence with a common difference = 2

We know explicit formula of an arithmetic sequence is

$T_{n}=a+(n-1)d$