To plot a graph from its equation, substitute different values of 𝑥 into the equation to give the corresponding 𝑦-coordinates. The pairs of 𝑥 and 𝑦 values can be recorded in a table ...

The line crosses the 𝑦-axis at a positive 𝑦-value that's greater than 5, so 8 is a realistic answer for the 𝑦-intercept. Back to top Check your understanding ...