Which is an equation of the line containing (1, –3) and (7, 15)?
1 answer:
Answer:
y = 3x - 6
Step-by-step explanation:
(1, -3) (7, 15)
Step 1. Find the slope
Slope = 3
Step 2. Create the equation of the slope then use a point and plug it in as terms of x and y with a y-intercept at the end
y = 3x + b
(15) = 3(7) + b
15 = 21 + b
15 - 21 = b
b = -6
Thus, the equation of the line is y = 3x - 6
You might be interested in
56 ounces are 3.5 pounds because 16 ounces are 1 pound and if you divide 56 by 16 you get 3.5
Answer:
Step-by-step explanation:
Let 
represent the length of the rectangle. The width can be represented as 
.
The perimeter of a rectangle with lengths 
and 
is given by 
.
Thus, we have:
The width is then 
.
33/9=11/3 or 3.666666667
hope this helps!
slope = 13
the slope of the tangent is f'( 4)
given f(x) = x² + 5x , then f'(x) = 2x + 5
and f'(4) = ( 2 × 4 ) + 5 = 13
The answer to this equation is 2x/x+7 or 2x over x+7
