Which of the following equations corresponds to the function represented in the table?
To solve this problem, we will find the linear equation that represents the function in the table by determining the slope and y-intercept.
- Step 1: Calculate the slope m.
Between two points (−3,0) and −2,1, the slope is:
m=−2−(−3)1−0=11=1
- Step 2: Use the slope and a point to find the y-intercept b.
Using the point (−3,0) and the formula y=mx+b, plug in the values:
0=1(−3)+b
0=−3+b
b=3
- Step 3: Write the equation of the line:
y=x+3
This linear equation must be consistent with all the points in the table, which it is:
- X=−2, Y=1: 1+3=4, so correct.
- X=−1, Y=2: 2+3=5, so correct.
- X=0, Y=3: 3, so correct.
- X=1, Y=4: 4+3=7, so correct.
The calculated equation, y=x+3, matches the option given as Choice 4.
Therefore, the function that corresponds to the table is y=x+3.