Mathematics, 09.10.2019 06:30 rosehayden21

Afountain on a lake sprays water in a parabolic arch modeled by the equation
y = −0.4x2 + 3x, where y is the height in feet and x is the horizontal distance. a beam of light is passed through the fountain to create a rainbow effect. if the beam is directed at an angle modeled by the equation -2.2x + 4.9y = 8.18, at what distance from the ground will the beam first touch the water spray?

0.6 feet

2 feet

4.2 feet

5.6 feet

Answers: 3

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Afountain on a lake sprays water in a parabolic arch modeled by the equation
y = −0.4x2 + 3x,...