Describe the transformations of the quadratic function y=-x^2+3
1 answer:
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Answer:
The required equation is: y=-3
Option D is correct.
Step-by-step explanation:
We need to write equation of line that is perpendicular to y = 5 and passes through (-4,-3).
The equation of line in slope-intercept form is expressed as:
where m is slope and b is y-intercept.
Finding Slope:
Comparing with the given equation y=5, the slope m =0
The slope of required line will be opposite reciprocal of 0 as both lines are perpendicular. so it will be m=0
Finding y-intercept
The y-intercept can be found using slope m=0 and point (-4,-3)
So, y-intercept b is b=-3
The equation of required line having slope m=0 and y-intercept b=-3 is
So, required equation is: y=-3
Option D is correct.
Answer:
On the blueprint the dimensions are <u>48 inches by 64 inches</u>.
Step-by-step explanation:
Given:
The scale on blueprint was 1/4 inch = 1 foot.
The actual dimensions of her bedroom are 12 feet by 16 feet.
Now, to find the dimensions on the blueprint.
Let the dimensions on the blueprint be by
As, given the scale on blueprint:
So, is equivalent to 1 foot.
Thus, is equivalent to 12 feet.
And, is equivalent to 16 feet.
Now, solving by cross multiplication method:
<em>By cross multiplying we get:</em>
Now, again:
<em>By cross multiplying we get:</em>
Therefore, on the blueprint the dimensions are 48 inches by 64 inches.