y-intercept - Is it a point or a number? – Khan Academy

Como podemos ajudar?

keith_rhoades

16 de novembro de 2016 16:08

In working with my Algebra 1 students in Khan Academy, y-intercepts are entered as points, yet most textbooks I have examined indicate that the y-intercept of a function is the y-value of the point where the graph intersects the y-axis. Why does Khan Academy have students enter y-intercepts as points rather than just numbers?

Nova publicação

1 comentário

chris.heddles

17 de novembro de 2016 11:29
1

Ações de comentário Permalink
I've always referred to them as a single number but I don't see it as wrong to refer to the full point coordinates. It may help students to connect that it's just another point on the line (many of my students struggle with the idea that lines are just a series of points that satisfy an equation)

Publicação fechada para comentários.

y-intercept - Is it a point or a number?

Não encontrou o que estava procurando?

1 comentário

Não encontrou o que estava procurando?