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Sagot :

The slope of the line perpendicular to the line having equation y = 2x + 5 is -1/2.

The equation of line in slope intercept form is expressed as y = mx + c, where m is the slope and c is the y intercept. Now if we compare this with the equation of the line y = 2x + 5, then the slope of the line is equal to 2. Now the slope of line perpendicular to this line is equal to -1/m that is -1/2.

For second part, the slope of line perpendicular to line having slope 1/3 is equal to -3.

For third part, equation of line having slope -2 and y intercept 8 will be expressed as

y = -2x + 8

For the third part, equation of line passing through point (-3, 0) and undefined slope is expressed as

(y - 0) = 1/0(x + 3)

0 = x + 3

=> x = -3

For the fourth part, the equation of the line whose y-intercept is 3 and slope is 1 is expressed as

y = x + 3.

Learn more about Slope intercept form at:

brainly.com/question/1884491

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