Q. What is the equation of the line that passes through the point (4,−5) and has a slope of −41 ?Answer:
Identify slope and point: Identify the slope and the point through which the line passes. The slope m is given as −41, and the point is (4,−5).
Use slope-intercept form: Use the slope-intercept form of a line equation.The slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept.
Substitute values and solve: Substitute the slope and the coordinates of the given point into the slope-intercept equation to solve for b, the y-intercept.Using the point (4,−5), we substitute m=−41, x=4, and y=−5 into the equation y=mx+b.−5=−41×4+b
Simplify to find b: Simplify the equation to find the value of b.−5=−1+b Add 1 to both sides to isolate b.−5+1=b−4=b
Write final equation: Write the final equation of the line using the slope m and the y-intercept b. Now that we have b=−4 and m=−41, we substitute these values into the slope-intercept form. y=−41x−4
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