Jess made 3 different stacks of wooden blocks. The first stack was 8 blocks high ,the second stack was 4 blocks higher than the
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Answer:
Step-by-step explanation:
Given line is,
y=-4x+3
when, x=-1 , y=-4(-1)+3=4+3=7
when, x=0 , y=-4(0)+3=0+3=3
when, x=1 , y=-4(1)+3=-4+3=-1
So, we got the points (-1,7) , (0,3) , (1,-1)
Now, putting the points in the graph and adding them , we will get the graph of given line.
Please check image for the graph.
Now for the second part-
The graph is positive means- it will be above the x-axis, that is y value will be positive.
From the graph we can see that, if x<0 , then y is positive.
So, any value of x which is less than 0 , will give the positive graph here.
The roots of x^3 - 7x^2 + 13x - 6 are 0.697, 2 and 4.303
<h3>How to determine the roots?</h3>The expression is given as:
x^3 - 7x^2 + 13x - 6
Express as a function
f(x) = x^3 - 7x^2 + 13x - 6
Next, we plot the graph of the function f(x) (see attachment)
From the attached graph, we have the zeros to be:
x = 0.697, 2 and 4.303
Hence, the roots of x^3 - 7x^2 + 13x - 6 are 0.697, 2 and 4.303
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