Which equation is in slop-intercept form?
2 answers:
Answer:
Step-by-step explanation:
The slope-intercept form of an equation is:
where <em>m </em>is the slope and <em>b</em> is the y-intercept.
Let's evaluate each answer choice. The one in slope-intercept form will have the y variable isolated on one side of the equation.
- A. 2x+3y=21: This is <em>not</em> is slope-intercept form. The y is not isolated.
- B. y-7=3(x+4): Again, this isn't slope-intercept form. A 7 is being subtracted from y
- C. y²=3x²-6: This also isn't correct. y is being squared.
- D. y=3x+12: This choice is correct. The y is all alone on the left side of the equation.
The equation in slope-intercept form is <u>D. y=3x+12</u>
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Answer:
4
Step-by-step explanation:
The general equation of a circle with center (a, b) and radius r is given by the equation;
The constant in the right hand side of the equation is simply the square of the radius;
We have been given the following equation;
(x-3)^2 + (y+1)^2 = 16
Comparing this with the general equation above;