How do you find the slope and y intercept for #y=3-1.25x#?

2 Answers
May 18, 2018

Answer:

The slope is #-1.25# and the #y#- intercept is #3#.

Explanation:

The equation of a line in slope-intercept form is

#y=mx+b.#

  • #m# is the slope
  • #b# is the #y#-intercept.

Put

#y=3-1.25x#

into that form and you get....

#y= -1.25x + 3#

So

  • #m# is #-1.25#
  • #b# is #3#

Have a great day!

May 18, 2018

Answer:

Slope #= (-1.25)#
y intercept #=3#

Explanation:

One of the common ways of expressing a linear equation is in slope-intercept form.

In general the slope-intercept form looks like:
#color(white)("XXX")y=color(green)mx+color(red)b#
where #color(green)m# is the slope and #color(red)b# is the #y#-intercept.

The given equation #y=3-1.25x# can be rearranged into slope-intercept form as:
#color(white)("XXX")y=color(green)(-1.25)x+color(red)3#
with a slope of #color(green)(-1.25)# and a #y#-intercept of #color(red)3#