Q. A line with a slope of −3 passes through the points (1,−10) and (−1,w). What is the value of w?w=___
Identify formula for slope: Identify the formula for the slope between two points (x1,y1) and (x2,y2), which is x2−x1y2−y1. Here, we know the slope is −3, and we have the points (1,−10) and (−1,w).
Plug in known values: Plug in the known values into the slope formula: −3=(w−(−10))/(−1−1). Simplify the equation: −3=(w+10)/−2.
Solve for w: Solve for w: Multiply both sides by −2 to get 6=w+10.
Subtract to find w: Subtract 10 from both sides to find w: 6−10=w, w=−4.
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