Q. A line that includes the points (10,1) and (9,t) has a slope of 8. What is the value of t?t = ____
Understand the formula: Understand the formula for the slope of a line.The slope of a line is calculated by the difference in the y-coordinates divided by the difference in the x-coordinates between two points on the line. The formula is:slope (m) = (y2−y1)/(x2−x1)
Apply the formula: Apply the slope formula to the given points and slope.We have the points (10,1) and (9,t) and a slope of 8. Let's denote (10,1) as (x1,y1) and (9,t) as (x2,y2). According to the slope formula:8=9−10t−1
Simplify and solve: Simplify the denominator and solve for t. The denominator 9−10 simplifies to −1. So we have: 8=−1t−1 To solve for t, we multiply both sides by −1: 8×(−1)=t−1−8=t−1
Isolate t: Add 1 to both sides to isolate t.−8+1=t−1+1−7=t
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