Mathematics: Use the graphs to estimate both solutions to x^2+x-4=0

Use the graphs to estimate both solutions to x^2+x-4=0

shannonderemer

26.08.2020

No graph so we'll use the quadratic formula

x^2+x-4=0

a = 1

b = 1

c = -4

x = -1 +- sqr root (1^2 - 4 * 1 * -4) / 2

x = (-1 +- sqr root (1 +16) ) / 2

x1 = (-1 + sqr root (17)) / 2

x2 = (-1 - sqr root (17)) / 2

Step-by-step explanation:

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cheezloord8472

30.03.2020

The area below the line is shaded.
and
The x-intercept of the boundary line is (-3/2,0)

I just had the test

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