Answer:
B
Step-by-step explanation:
A graph is only a function when there is only one y value for each x value.
A trick is to draw a line through some points on the x-axis, and if the line goes through more than one point. Then it is not a function. (See picture)
Sorry, not all the lines are straight, but you get the point. B is the only one that doesn't have more than one point on the lines I drew.
Answer:
(x + 7)(x + 3).
Step-by-step explanation:
x^2 +10x + 21
21 = 7 * 3 and 10 = 7 +3
so the factors are
(x + 7)(x + 3).
Answer:
G. (8,6)
Step-by-step explanation:
remember that EF is four times the length of DE
so the distance between E and D multiplied by 4 should equal F
Answer:
x = 1
Step-by-step explanation:
First simplify and get 3x + 3 = x + 5
Then subtract x from both sides and get 2x + 3 = 5
Then subtract 3 from both sides and get 2x = 2
Divide both sides by 2 and get x = 1
Answer:
-3
Step-by-step explanation:
When putting the smaller number in front of the bigger number your answer will be negative. I hoped I helped :)
