In the table, it shows the x values and the corresponding y values under it [aka f(x)].
The problem is basically asking which equation, a,b,c or d will get the y values with the x values.
we can try this with x value 3 and y value 7
a. 3^x=3^3=3*3*3=27
27 is so far away from 7 so a must be wrong
b.3x=3*3=9
still not 7 therefore b is also wrong
c. 2^x-1= 2^3-1=8-1=7
7=7 therefore this one might be right, but to make sure we have to check if d is correct or not
d. 2x+1=2*3+1=7
7=7 so d is also correct for the first set of values.
Next we should use the next available values until one of the answers c or d is confirmed wrong
x value 4 and y value 15
c. 2^4-1=16-1=15
15=15
d. 2x+1=8+1=9
9 does not work
Therefore, the answer should be c.
Answer:
x would equal -8.
Step-by-step explanation:
1. combine like terms, and add -6x+5x, leaving you with -1x
2. add +4 to the other side of the equal sign, because to get rid of a negative you need to divide.
3.once you add the 4 over to the other side, the equation you should now be left with is -1x=8.
4. divide both sides of the equal sign by negative 1, and 8 divided by -1 should be -8, and thats the value of x.
Answer:
Step-by-step explanation:
= 
( Division property of equality )
or
10a × 
= 50 × ( Multiplication property of equality )
(It depends of the options you have in the answer choices)
