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2 years ago

A function is a relation in which each element in the input is mapped to how many elements in the output?

Mathematics

1 answer:

Scilla [17]2 years ago

7 0

One input can map out multiple outputs

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Lisa walked 8 miles more than Tim . Lisa walked twice as far as Tim . How far did each walk ?

adoni [48]

L = 8 + T
L = 2T

You can combine them

2T = 8 + T
T = 8

If Tim walked 8, Lisa walked twice as much which is 16

7 0

3 years ago

Find y if the line through (3, 1) and (9, y) has a slope of 4.

klio [65]

Answer:

y = 25

Step-by-step explanation:

To find slope, we use this expression: $\frac{y2-y1}{x2-x1}$

Since we already know the slope and are trying to figure out a y-value, we can input all of the values we do know in the expression and solve for the missing y.

$\frac{y-1}{9-3}$ =4

Simplify the denominator: $\frac{y-1}{6}$ =4

Multiply both sides by 6 to isolate the y - 1: y - 1 = 24

Add 1 to both sides to isolate the y: y = 25

y = 25

7 0

3 years ago

What is the value of log 27^9?

KengaRu [80]

Answer: The answer is $\dfrac{2}{3}.$

Step-by-step explanation: We are given to find the value of $\log_{27}9.$

Here, we will be using the following properties of logarithm.

$(i)~\log a^b=b\log a,\\\\(ii)~\log_ba=\dfrac{\log a}{\log b}.$

So, we will be solving the given problem using these two as follows.

$\log_{27}9=\dfrac{\log9}{\log27}=\dfrac{\log 3^2}{\log 3^3}=\dfrac{2\log 3}{3\log 3}=\dfrac{2}{3}.$

Thus, the required value is $\dfrac{2}{3}.$

4 0

3 years ago

Read 2 more answers

Graph the function f(x) = -3x - 2.

Elza [17]

Answer: slope is -3 and y-intercept is -2

Step-by-step explanation:

when x= 0, y=-2

when x=1, y=-5

i believe you have just to change the value of the letter x in the equation to find the value of y

5 0

4 years ago

Evaluate the expression for k=8<br><br> -1.3k=

Svet_ta [14]

Answer:

-10.4

Step-by-step explanation:

-1.3(8)=-10.4

5 0

3 years ago