To know that a relation is a function is it the graph gets approved by the “vertical line text”. If the imaginary vertical lines you draw onto the graph only touch one part of the line, then it is a function. If they touch two or more parts of the line, then the relation isn’t a function.
(Since I cant see the following I’ll also give another tip) If the ordered pairs are given, then if a number in the x points is repeated, then it is not a function. But if I’m y is repeated, it doesn’t matter, it’s still a function. The only thing you need to focus on is on the x list, if one number is repeated then it is not a function.
You answer is 229 multiply first then add (PEMDAS)
Answer:
(x^2+4)(x-2)
Step-by-step explanation:
We can factor by grouping
take out x^2 from the first two terms, and factor out 4 from last two terms
x^2(x-2)+4(x-2)
(x^2+4)(x-2)
Answer:
Step-by-step explanation:
In order for 4*t to equal d, the 4 has to represent a rate with respect to time because the multiplication between them will cancel the time unit. We know this because of the formula d = rt with 'r' being rate
a: 4 is the rate at which Shelby walks, 4 miles per hour
b: T is replaced with 32, so the expression tells us the distance Shelby travels in 32 hours at a rate of 4 miles per hour
Answer:
1 pound of cheese is $2.80
Step-by-step explanation:
8.40 divided by 3 is 2.80
plz make me brainliest
:)