Given line: y =3x - 7
Slope-intercept form is y = mx + b where m is slope and b is the y intercept
To find m you must take the slope of the line given, which would be 3, and take its opposite reciprocal (switch its sign to negative/positive if it was originally positive/negative and flip the numerator and denominator)
the opposite of 3 is -3 and the reciprocal of -3 is
This means that the slope of a line perpendicular to y = 3x - 7 is
This is the current formula you found:
To find the y-intercept (b) in the point that this line goes through (2, -1) into the x and y of the equation and solve for b
-1 = (2) + b
-1 = + b
= b
That means that the equation perpendicular to y = 3x - 7 is...
y =
Hope this helped!
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Hello!
-3(x - 14) + 9x = 6x + 42
Distribute the coefficient of the parenthesis:
-3(x) - 3(-14) + 9x = 6x + 42
-3x + 42 + 9x = 6x + 42
Combine like terms:
6x + 42 = 6x + 42
Both sides of the equation are the same, therefore:
There are infinitely many solutions.
Answer:
A, C, and D
Step-by-step explanation:
The rate of change will simply be the slope of the line, which we can find by taking the change in y and dividing that by the change in x:
slope =
Thus, the slope is 3/2 = 1.5.
Since the slope remains constant throughout the graph, we know that A is correct. In addition because the points 0, 2, 4, and 6 are on the graph, the rate of change between any of the two points will still be the constant 1.5, making C and D correct as well.
So, we can choose A, C, and D.
Hope this helps!
Let width be x
ATQ