Làm ơn giúp tớ!
Tớ có 1 phần homework như sau như sau:
In a typed (double spaced) paper, describe in correct mathematical language, using well-constructed paragraphs and sentences, how linear equations in two variables differ from quadratic equations in two variables. Then describe how to graphically as well as algebraically find the x- and y-intercepts of either type of equation (or how to determine there are intercepts).
My solution:
-Linear equations in two variables differ from quadratic equations in two variables because the power(or exponent?) between the variables of the linear equation and the quadratic equation is different. For detail, the variable x of the linear equation has the power of one and the variable x of the quadratic equation has the power of one and two.
-To determine x- and y-intercept on the rectangular coordinate system (or Cartesian plane), look for the intercepts of the graph- parabola of the quadratic equation or line of the linear equation- and the x- and y-axis. The x-intercepts are the points where the graph intercept the x-axis and the y-intercepts are the points where the graph intercept the y-axis.
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