12+5=138+15=1610+15=?
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The equation for a line is mx + b = y where m is the slope and b is the y intercept. To find the slope, we need to use the equation .
Therefore, m is equal to -1. Normally, we would then have to plug in m and one of the points to find b. However, because the point (0,5) is the y-intercept (the y-intercept is the point on the line where x is equal to 0), we can skip this step and go straight to forming the final equation, which is .