Robin solved a quadratic equation using the process shown. 2
0
- 2x +7
-(-2) + (-2)
|-2)-40530
X
2= 74-7
1
2
4+27-11
4 = 21/11
Complete the explanation of her mistake.
It should be (select) 4, because
When Robin squared the value of b, she said that (-2)2 =
-2.-2= The correct answer should be 421

Monica build a remote control toy airplane for science project to test the plane she launched it from the top of a building the plane travel a horizontal distance of 50 feet before landing on the ground a quadratic function which models the height of the plane in feet relative to the ground at a horizontal distance of x feet from the building is shown

Which statements about the system are true? check all that apply. y =1/3 x – 4 3y – x = –7 the system has one solution. the system consists of parallel lines. both lines have the same slope. both lines have the same y–intercept. the equations represent the same line. the lines intersect.

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