The problem provides a table of $x$ and $y$ values that satisfy the linear relation $y = mx + c$. We are given $x$ values of 0, 2, and 4, with corresponding $y$ values of 1, 2, and 3. The task is to find the value of $x$ when $y = 5$.

AlgebraLinear EquationsSlope-Intercept FormSolving Equations
2025/4/29

1. Problem Description

The problem provides a table of xx and yy values that satisfy the linear relation y=mx+cy = mx + c. We are given xx values of 0, 2, and 4, with corresponding yy values of 1, 2, and

3. The task is to find the value of $x$ when $y = 5$.

2. Solution Steps

First, we need to determine the values of mm and cc in the equation y=mx+cy = mx + c.
Using the point (0, 1), we can substitute x=0x = 0 and y=1y = 1 into the equation:
1=m(0)+c1 = m(0) + c
1=0+c1 = 0 + c
c=1c = 1
Now we know the equation is y=mx+1y = mx + 1.
Using the point (2, 2), we can substitute x=2x = 2 and y=2y = 2 into the equation:
2=m(2)+12 = m(2) + 1
2=2m+12 = 2m + 1
21=2m2 - 1 = 2m
1=2m1 = 2m
m=12m = \frac{1}{2}
So the equation is y=12x+1y = \frac{1}{2}x + 1.
Now we want to find the value of xx when y=5y = 5. Substituting y=5y = 5 into the equation gives:
5=12x+15 = \frac{1}{2}x + 1
51=12x5 - 1 = \frac{1}{2}x
4=12x4 = \frac{1}{2}x
x=4×2x = 4 \times 2
x=8x = 8

3. Final Answer

The value of xx when y=5y = 5 is
8.

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