Answer:
y = 3x
Step-by-step explanation:
1) Identify the slope of the given equation. We can see that the y is isolated in the equation
, so it is in slope-intercept form, or
format. When an equation is in slope-intercept form, the
, or the coefficient of the x-term, represents the slope, thus
is the slope of the given equation. Lines that are perpendicular to each other have slopes that are opposite reciprocals, so the slope of the new line would be 3.
2) Now, use the point-slope formula
to write the equation of the new line. Substitute values for
,
, and
in the formula.
Since
represents the slope, substitute 3 for it. Since
and
represent the x and y values of a point the line intersects, substitute the x and y values of (3,9) for those places in the formula as well. Then, with the resulting equation, isolate y to find an answer in slope-intercept form:
![y-9 = 3(x-3)\\y-9 = 3x-9\\y = 3x](https://tex.z-dn.net/?f=y-9%20%3D%203%28x-3%29%5C%5Cy-9%20%3D%203x-9%5C%5Cy%20%3D%203x)
Answer:
g(x)=3(x+3)(x-1)
Step-by-step explanation:
g(x)=3(x+3)(x-1) is in factorized form, therefore it will easily reveal the zero's
simply putting it's factors equal to zero.
Because it's a 30-60-90 triangle, so the ratio of side must be 1:2:3, which will be x:9:y.
1:2:3=x:9:y so x=4.5
The minute each hand made was 5 minutes