9.6 divided by 0.8 equals
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Answer:
Step-by-step explanation:
( g ° f )(x) = ( x + 7 )² = x² + 14x + 49
20 + 3(x² + 14x + 49) = - 34
20 + 3x² + 42x + 147 = - 34
3x² + 42x + 201 = 0 ⇔ x² + 14x + 67 = 0
D = 196 - 268 = - 72 < 0
There is no any roots in set of real numbers.
The values of x in set of complex numbers are:
=
±
= - 7 ± 3√2 i
First, we have to find x- and y-intercepts of given equation.
1. y-intercept is a point (0, y) so substitute x = 0 and calculate:
y-intercept = (0, -3)
2. x-intercept is a point (or points) (x, 0), so when we substitute y = 0 there will be:
x-intercept = (3, 0)
Now, when we have x- and y-intercepts, we can write an equation of a line (graph of the linear function) that passes through this two points:
Our linear equation is: y = x - 3
1. y-intercept is a point (0, y) so substitute x = 0 and calculate:
y-intercept = (0, -3)
2. x-intercept is a point (or points) (x, 0), so when we substitute y = 0 there will be:
x-intercept = (3, 0)
Now, when we have x- and y-intercepts, we can write an equation of a line (graph of the linear function) that passes through this two points:
Our linear equation is: y = x - 3