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garri49 [273]
3 years ago
10

Which are functions and which are non functions​

Mathematics
1 answer:
krek1111 [17]3 years ago
4 0

9514 1404 393

Answer:

  functions: A, C; non-functions: B, D

Step-by-step explanation:

A relation is not a function if any input value (x) maps to more than one output value (y).

On a graph, we apply the "vertical line test." If any vertical line intersects two or more points on the graph, it is not a function. We say it fails the vertical line test. The bottom graph (D) fails the vertical line test, so is not a function.

On a mapping, such as figure B or C, any input (x-value) that is the source of two or more arrows means the relation is not a function. The map of B is not a function.

The other choices (A and C) show a functional relation.

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WILL MARK BRAINLIEST
Aneli [31]

Answer: 37 donuts

Step-by-step explanation:

coffee for 2,

donuts for 1.5

c = coffee

d = donuts

lets make an equation

c*2 + (80-c)*1.5 = 141.5

from this we get:

c= 43.

if c = 43, then d is 80-43 = 37.

they sold 43 coffees, and 37 donuts.

lets check the math

43*2+37*1.5 = 141.5. math checks out

mark me brainlist

3 0
3 years ago
One more for today since I couldn’t find the answer
Luda [366]
The answer would be -15
12 + -15 = -3
7 0
3 years ago
In math is -34 less than -9
melamori03 [73]
When dealing with negatives, the higher the number is, the lower the value is. therefore, -34 is less that -9.
6 0
4 years ago
Read 2 more answers
In step 2, how do you know that 5x? and -12x? are like terms? If you could please help me with 1,2,3 if not just 2
klemol [59]
First we need to define what a like term is:

Like term meaning:

Terms whose variables (such as x or y) with any exponents (such as the 2 in x2) are the same. Examples: 7x and 2x are like terms because they are both "x".

Answer (for question 1):
For step one, you would just have to expand the brackets. The number of times multiplication would be used is 3 times. If you are confused, I attached a diagram in my ‘side notes’ section.

Answer (for question 2):
-5x squared and -12x squared are like terms because they both end in x squared.

Answer (for question 3):
There are no more like-terms.

Hope this helps!
Please give Brainliest!

Side notes:

3 0
2 years ago
You are going to play mini golf. The mini golf place has a bucket that has 20 blue, 10 orange, 10 green, 10 yellow, 15 red, and
miv72 [106K]
If I am not mistaken, there is a 31% chance that you pick an orange golf bell, put it back and then pick up a red ball.
6 0
3 years ago
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