anonymous
  • anonymous
Consider the line that passes through the point (3, -6) and has a slope of 4. Part 1: Write the equation of this line using point-slope form. (2 points) Part 2: Using your equation from part 1, rewrite this equation in slope-intercept form. Make sure to show all of your work. (2 points) Part 3: Using your equation from part 2, rewrite this equation in standard form. Make sure to show all of your work. (2 points) Thanks a lot
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
eq of the line having slope m and passing through pt (x1,y1) in point-slope form is given by y-y1=m(x-x1)
anonymous
  • anonymous
here slope is 4 and x1=3 and y1=-6
anonymous
  • anonymous
no i still don't understand i have done read the lesson multiple times and i don't understand

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anonymous
  • anonymous
see slope is the tangent of the inclination angle which the given line makes with the +ve direction of x-axis
anonymous
  • anonymous
so the equation would be y-6=4(x-3)
anonymous
  • anonymous
for part a) eq f the reqd line is y-(-6)=4(x-3)
anonymous
  • anonymous
u did it correctly except y+6 instead of y-6
anonymous
  • anonymous
okay
anonymous
  • anonymous
i know slope intercept is y=mx+b
anonymous
  • anonymous
but how do you get read of the x1 and y1
anonymous
  • anonymous
rid
anonymous
  • anonymous
x1,y1 is the cordinate of the point through which the line passes
anonymous
  • anonymous
right but that is not in y=mx+b
anonymous
  • anonymous
y=mx+ b is the slope-interept form
anonymous
  • anonymous
yes but it says make the first equation into slope intercept form
anonymous
  • anonymous
after simplifying just rearrange the terms keeping y on the left side of equal sign
anonymous
  • anonymous
y+6=4(x-3) y+6=4x-12 y=4x-18 is that right
anonymous
  • anonymous
y-(-6)=4(x-3) or y+6= 4x -12 y=4x-12-6 y=4x-18 (point slope form)
anonymous
  • anonymous
right
anonymous
  • anonymous
okay i think i got in now so for standard form y=4x-18 -4x+y=-18
anonymous
  • anonymous
also for standard form just rearrange the terms u may write 4x-y-18=0 or 4x-y=18 as per ur choice
anonymous
  • anonymous
wait for the second one how come your 4x isn't negative

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