Question

consider the line whose equation is 4x-8y=8

A.) write the equation in slope-intercept form
y=1/2x-1
B.) write a slope of a line perpendicular to this line
y=2/1-1
C.) write the equation of the line, in point-slope form, that is perpendicular to the line that passes through the point (1, 2)

Answer 1

When you want slope intercept form, isolate the term with the y so you get \(8y=4x-8\) then divide by 8 to get \(y=\frac 1 2 x -1.\)

Answer 2

a line perpendicular would have a slope that is the negative recipricoal of 1/2 so -2

Answer 3

For C, which line passes through (1,2) the original line or the perpendicular line?

Answer 4

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