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anonymous
 one year ago
Create an equation.
anonymous
 one year ago
Create an equation.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I think I got the equation but not the second part. y=x^2+36

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1the vertex form is a(x b)^2 + c so here we have y = a(x  0)^2 + 36

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1when y = 0 x = 6 0 = a(6)^2 + 36 so a = 1 equation is y = x^2+ 36

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Create a table of values for a linear function. A drone is in the distance, flying upward in a straight line. It intersects the rainbow at two points. Choose the points where your drone intersects the parabola and create a table of at least four values for the function. Remember to include the two points of intersection in your table.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1its negative before the x^2 because the parabola opens downwards

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0this is the second part which i don't understand that goes with this equation :(

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1well it a matter of picking a sloped line and choosing which points you want it to intersect the parabola

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Ok so which points should I choose? Actually, I'll let you decide.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1pick the point where x is 5 and x = 4 you can work out the value of y by plugging these values into the equation.

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1x = 5 y = (5)^2 + 36 x = 4 y = (4)^2 + 36

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1so thats 2 values for your linear function

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What would the table look like?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1hmm  i wonder if this is easiest way to do this  anyway we've started it this way so we may as well continue

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1i've done things wrong way round...

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1scrap all that and build the table first  that's what they asked for anyway

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0No matter, we can always start over:)

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1let the equation of the line be y = x + 10 pick 2 values for x either side of 6 and +6 lets work these 2 points out x = 7 y = 7 + 10 = 3 x = 8 y = 8 + 10 = 18

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1so thats 2 values on our table

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1no we need to find the 2 points of intersect on the rainbow we can do this by solving the system of equations y = x + 10 y = x^2 + 36

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1x^2 + 36 = x + 10 x^2 + x  26 = 0

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0What what would the table look like?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1 yes  thats what we are calculating now

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1you can solve this by using quadratic formula

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1there will be 2 values for x you can find the correspondimg values of y by subbing in y = x + 10

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438212449020:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so then we would need 2 more points correct?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0just to check, these are 2 points of intersection?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1yes solve the quadratic for x theh y = x +10 for the 2 values

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok! But where did the y=x+10 come from?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1the first x value will be between 6 and 5 and second will be between 4 and 5

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1x = (1 +/ sqrt(1^1  4*1*26)) / 2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok, so it could be like 4 for the first and idk for the second

welshfella
 one year ago
Best ResponseYou've already chosen the best response.1that comes to x = 4.62 and  5.62
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