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How do you find the x and y intercepts for #y = -0.8x - 5#?

Answer 1

Nathan Axel

#x=-6.25,y=-5#

#"plug in 0 for" # #y #

#:.y=-0.8x-5#

#:.0=-0.8x-5#

#-0.8x=5#

#:.x=5/-0.8#

#:.x=-6.25#

#"plug in 0 for" # #x #

#:.y=-0.8(0)-5#

#:.y=-5#

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Answer 2

Ethan Adkins

To find the x-intercept, set y = 0 and solve for x. To find the y-intercept, set x = 0 and solve for y. For the equation y = -0.8x - 5:

x-intercept: 0 = -0.8x - 5 x = -5 / -0.8 x = 6.25

y-intercept: y = -0.8(0) - 5 y = -5

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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