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The equation of a straight line which makes an angle of 30 degrees with the positive x axis and cuts the y axis at 5 is this working our right y - y1=m(x-x1) y-5=m(x-0) m = tan theta m = tan 30 degrees m = 0.577 y - 5 = 0.577(x-0) y = 0.577x + 5

A ball flies through the air following the equation y = 2 + 0.12x - 0.002^2. The ground to where the ball lands is modelled by y = 0.15x. The coordinates on the ground where the cannon ball lands is. Do I need to find the point of intersection of these lines?

there's no point of year 11 estimates. Year 12 is where it counts

but howcome it says x^4?

How should I go about solving complex word problems?

anyone?

a-x = a^2 - 2ax^2 + x^4 how did you get this step?

set the equations equal to each other and then got stuck

√(a-x) and a-x^2 intersect at x = 1 Find the possible values for a

could you please explain how it would be done?

will the inverse be y = (x-6)^2 + 4

-y^2 = x^2 - 16 can this be written as y^2 = -x^2 + 16

y = (x-4)^2 + 6 having difficulty to find inverse function

domain and range of the overall hybrid function?

hybrid function x^2-4, x ≥ 0 x+1, x<0 domain and range of function

find x: f(x) > 6, for the equation y = (x-3)^2 (x+2)

82.60 atar

Good job!

what does R+U{0} mean?

how to you work out the practical domain