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A student uses the equation y = 3 - 4x to represent a linear relationship.

He says the slope is 3 and the x-intercept is -4. How would you help him correct his thinking?
please help!

Respuesta :

Step-by-step explanation:

  • The student is viewing the equation in the wrong way, he needs to put the equation in standard from / correctly first in order to be able to find the slope.
  • The straight line formula is

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

  • looking at the formula in that form m=gradient (slope) , and c is the Y intercept.
  • so putting the above equation in the correct form

[tex]y = - 4x + 3[/tex]

  • so m = -4 meaning that -4 is the gradient aka slope, and 3 is the y-intercept!
  • hope this helps

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