The equation for line t can be written as y=4x−8. Line u, which is perpendicular to line t, includes the point (8,8). What is the equation of line u? Write the equation in slope-intercept form.
Q. The equation for line t can be written as y=4x−8. Line u, which is perpendicular to line t, includes the point (8,8). What is the equation of line u? Write the equation in slope-intercept form.
Determine slope of line t: Determine the slope of line t.The equation of line t is given as y=4x−8. The slope-intercept form of a line is y=mx+b, where m is the slope and b is the y-intercept. Comparing the given equation with the slope-intercept form, we find that the slope (m) of line t is 4.
Find slope of line u: Find the slope of line u. Since line u is perpendicular to line t, its slope will be the negative reciprocal of the slope of line t. The negative reciprocal of 4 is −41. Therefore, the slope of line u is −41.
Use point-slope form: Use the point-slope form to find the equation of line u. We have the slope of line u−41 and a point through which it passes (8,8). The point-slope form of a line is y−y1=m(x−x1), where m is the slope and (x1,y1) is the point on the line. Plugging in the values, we get y−8=−41(x−8).
Simplify to slope-intercept form: Simplify the equation to slope-intercept form. Starting with y−8=−41(x−8), we distribute the slope on the right side to get y−8=−41x+2. Then, we add 8 to both sides to solve for y, resulting in y=−41x+2+8. Simplifying further, we get y=−41x+10.
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