Yes it's a function, because for each input of x value, we have exactly an output of y-value
Answer:
B
Step-by-step explanation:
Given the 2 equations
y = 2x - 3 → (1)
y - 9 = - x → (2)
Substitute y = 2x - 3 into (2)
2x - 3 - 9 = - x
2x - 12 = - x ( add x to both sides )
3x - 12 = 0 ( add 12 to both sides )
3x = 12 ( divide both sides by 3 )
x = 4
Substitute x = 4 into either of the 2 equations and evaluate for y
Substituting into (1)
y = 2(4) - 3 = 8 - 3 = 5
Solution is (4, 5 ) → B
Answer:
25
Step-by-step explanation:
When you substitute x for 3, the new equation would be ; 3(3)(2) - 2(3) + 13
using order of operations from left to right, you would start by multiplying
3(3)(2) and 3(3) is 9, and 9(2) is 18. The next step is to multiply 2 and 3 which is 6. Once you have both groups of numbers simplified, you can plug them back in : 18 - 6 + 13 ; 18 - 6 is 12, and 12 + 13 is 25, so the answer is 25.
Answer:
A
(The probability of randomly selecting a picture that shows Justin with his friends is greater than the probability of randomly selecting a picture that shows Justin with his family.)
In the equation given, the Distributive Property is being demonstrated.