Respuesta :

Step-by-step explanation:

Only D, y = 3x + 12 is in slope-intercept form.

Answer:

[tex]\boxed {\boxed {\sf y=3x+12}}[/tex]

Step-by-step explanation:

The slope-intercept form of an equation is:

[tex]y=mx+b[/tex]

where m is the slope and b is the y-intercept.

Let's evaluate each answer choice. The one in slope-intercept form will have the y variable isolated on one side of the equation.

  • A. 2x+3y=21: This is not is slope-intercept form. The y is not isolated.
  • B. y-7=3(x+4): Again, this isn't slope-intercept form. A 7 is being subtracted from y
  • C. y²=3x²-6: This also isn't correct. y is being squared.
  • D. y=3x+12: This choice is correct. The y is all alone on the left side of the equation.

The equation in slope-intercept form is D. y=3x+12