Which represents a quadratic function y=2(x+2)(x-1) in standard form
1 answer:
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Answer:
y= x-
Step-by-step explanation:
The first step to making an equation of a line is finding the slope. To do this, we can use the point slope formula:
In this case,
y2=1
y1= -2
x2=5
x1= -4
plug this into the formula: , which gives us 3/9, or 1/3 as the slope.
Now we have the equation y=1/3x+b. Let's find b! We can do this by plugging in one of the points into our new equation, let's use (5,1)
1=y, 5=x
1=(5)+b
b= -
now, we plug b= -2/3 into our equation, and we finally get y= x-