Class IX

Points on a Line II

Lesson

Practice

Interactive practice questions

Consider the equation $y=9x$y=9x.

What is the value of $9x$9x when $x=-4$x=−4?

Does $\left(-4,-36\right)$(−4,−36) lie on the line $y=9x$y=9x?

Yes

Easy

< 1min

Consider the equation $y=-6x$y=−6x.

Easy

< 1min

Consider the equation $y=6x+4$y=6x+4.

Easy

< 1min

Consider the equation $y=-6x+7$y=−6x+7.

Easy

< 1min

Outcomes

9.A.LETV.1

Recall of linear equations in one variable. Introduction to the equation in two variables. Prove that a linear equation in two variables has infinitely many solutions, and justify their being written as ordered pairs of real numbers, plotting them and showing that they seem to lie on a line.

9.CG.CG.1

The Cartesian plane, coordinates of a point, names and terms associated with the coordinate plane, notations, plotting points in the plane, graph of linear equations as examples; focus on linear equations of the type ax + by + c = 0 by writing it as y =mx + c and linking with the chapter on linear equations in two variables.

Points on a Line II

Interactive practice questions

Outcomes

9.A.LETV.1

9.CG.CG.1

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