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3 years ago

How do you tell if an equation is a function

2 answers:

4 0

You can tell whether a relation is a function by plotting the numbers on a graph and applying the vertical line test. If no vertical line passing through the graph intersects it at more than one point, the relation is a function.

gulaghasi [49]3 years ago

4 0

Answer:

Step-by-step explanation: You can tell whether a relation is a function by plotting the numbers on a graph and applying the vertical line test. If no vertical line passing through the graph intersects it at more than one point, the relation is a function.

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-(-3,-2) and (1,6); m = 2 Plz help me

tensa zangetsu [6.8K]

−

, (

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Find the value of b

using the formula for the equation of a line.

Now that the values of

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b to find the equation of the line. y

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4 years ago

Find the value of x for which a || b. Then find the measure of the labeled angles.

Alchen [17]

Answer:

The measure of the labeled angles is 135°

Step-by-step explanation:

we know that

if a || b

then

$(3x-27)\°=(2x+27)\°$ -----> by alternate exterior angles

Solve for x

$3x-2x=27+27$

$x=54$

Find the measure of the labeled angles

$(3(54)-27)\°=135\°$

6 0

3 years ago

The combined average weight of an okapi and a llama is 450 kilograms. The average weight of 3 llamas is 190 kilograms more than

olya-2409 [2.1K]

Okapi=o llama=l

o+l=450

3l=190+o

I cant remember how to work it out but if you have a graphics calculator you would open a calculator page, press Menu:3:1 (solve function) and type in those equations. It would look like this:

solve(o+l=450 and 3l=190o,o)

l=160 o=290

llamas are 160kg and okapis are 290kg. Hope that helped a bit :)

3 0

3 years ago

What is the solution set of x 2 + 5x - 5 = 0?

mart [117]

X^2 + 5x - 5 = 0
This is a quadratic equation that cannot be factored. It can be solved using the quadratic formula or by completing the square.
the quadratic formula is x = (-b +-sqrt(b^2 - 4ac))/2a
a is the coefficient of the x^2, b is the coefficient of the x, and c is the constant.
a = 1, b = 5, c = -5
x = (-5 +- sqrt(25+20))/2
x = (-5 +- sqrt(45))/2
x = (-5 + - 3 sqt 5))/2
x = (-5 + 3sqrt5)/2 and x = (-5 - 3sqrt5)/2

5 0

3 years ago

Read 2 more answers

A Biology student who created a regression model to use a bird's Height when perched for predicting its Wingspan made the follo

xxTIMURxx [149]

Answer:

(A) A scatter plot is used to determine if the linear model is appropriate.

(B) A linear model estimates the value of the dependent variables.

Step-by-step explanation:

The regression model is formed to estimate the Wingspan using the bird's Height when perched.

The model is of the form:

$Wingspan=\beta Bird's\ height\ + \alpha +\epsilon$

(A)

The R squared value is a statistic that is used to determine the proportion of variation in the dependent variable that can be explained by the independent variables.

R squared value of 93% indicates that 93% variation in the Wingspan is explained y the bird's height when perched.

To determine whether the linear model is appropriate one could use a scatter plot. A scatter plot is used to determine whether the provided data is representing the linear relation between two variables.

(B)

The regression model is:

$Wingspan=\beta Bird's\ height\ + \alpha +\epsilon$

This model is used to estimate the wingspan for any provided bird's height.

It does provided an accurate value of the dependent variable.

Thus, a bird with height 10 inches can have an estimated wingspan of 17 inches.

7 0

3 years ago

How do you tell if an equation is a function ​

How do you tell if an equation is a function