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secondary 2 | Maths
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anyone can help with this plsss!!
Date Posted: 6 years ago
Views: 382
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It should look something like this. Your minimum point of your parabola curve should be (0.5, 0). Hope this works!!!
Date Posted:
6 years ago
how do u know is a curve and all this?
If you see y = x^2 + x + constant, it’s a “U-shape” curve called the positive quadratic curve. However if it is -x^2 + x + constant then it is a “n-shape” curve which is a negative quadratic curve.
So basically y = x^2 + x + constant is a quadratic function.
So basically y = x^2 + x + constant is a quadratic function.
I think for secondary school level, you guys learn 2 kinds of graphs (correct me if i’m Wrong)
-Linear graph (Straight Line graph)
-Quadratic graph (curve graph)
Linear equations usually comes in the form of y=mx+c where m is your gradient and c is your constant.
Eg. Y=4x+4
Quadratic equations usually comes in the form of y=x^2 + x + c where c is your constant Eg. Y= 2x^2 + 3x + 4
-Linear graph (Straight Line graph)
-Quadratic graph (curve graph)
Linear equations usually comes in the form of y=mx+c where m is your gradient and c is your constant.
Eg. Y=4x+4
Quadratic equations usually comes in the form of y=x^2 + x + c where c is your constant Eg. Y= 2x^2 + 3x + 4
like idk how to get Y all this because usually they would give a table to find Y
Oh you mean for that previous question you posted ah?
yes
The table is actually an extra information. In your question, they give you a range of x values, -3<=x<=3 so I simply used that info to calculate the y. Like when x= -3 y=?, x=-2 y=? Until I reach when x= 3 y=? Then I plotted the graph using the y values calculated and x values given from the range.
for the y axis can i ask how many cm and how many unit?
You mean the standard grid paper? Or with reference to the question?
Standard grid paper if I’m not wrong is 1cm to 5 small units.
For the question, since the largest value is 49 then u just take like 1cm: 10units. Personal preference.
Standard grid paper if I’m not wrong is 1cm to 5 small units.
For the question, since the largest value is 49 then u just take like 1cm: 10units. Personal preference.
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