Mathematics, 15.11.2019 00:31 xodees

How do you do this i'm confused.

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Transformations are without the equation already in them but I'll tell you what I know.

So your 5th problem is a reflection.

So the main thing is starting from the left of an equation you read the transformation from a point on the graph.

so for example, the first graph, reflects across the Y axis. What makes this the most is it's all linear. So transformations are like...

2x+2 this is really hard to teach as a linear.

okay picture something like this...
$\sqrt{ - 4x + 2}$
since the - is on the inside this means it reflects across the Y axis

$- \sqrt{4x + 2}$
since this is on the outside it reflects across the X axis.

try searching YTfor "understanding transformations" it's slightly confusing and I feel I'm too to teach it properly. It took me forever to understand the first I saw too so don't be discouraged.

Answer from: Quest

the system of inequity is

$y\leq -x+4$

$3y> x$

step-by-step explanation:

from the given graph it is noticed that we have two related lines. one is solid and another is dashed.

if a line passing through two points, then the equation of line is

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)$

the solid line passing through the points (0,4) and (4,0).

$y-4=\frac{0-4}{4-0}(x-0)$

$y=-x+4$

the related equation of solid line is $y=-x+4$ .

similarly, find the related equation of dashed line. the dashed liune passing through the points (0,0) and (3,1).

$y-0=\frac{0-1}{3-0}(x-0)$

$3y=x$

the related equation of dashed line is $3y=x$

from the given graph it is noticed that the point (0,1) lies on the shaded region, therefore the point (0,1) must be satisfied by the related equations.

check the related equations by the point (0,1).

$1=-0+4$

$1=4$

this statement is true if the sign of inequality is < instead of equality. since it is an solid line therefore the sign of inequality will be $\leq$ . the required inequality is

$y\leq -x+4$

similarly, check the second related equation.

$3(1)=0$

it is a dashed line, so this statement is true if the sign of inequality is > . the required inequality is

$3y> x$

15 points write a system of inequalities to represent the shaded portion of the graph

Answer from: Quest

can you put the picture up?

step-by-step explanation:

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