In the equation y = mx + b for a straight line, the number m is called the slope of the line. Let x = 0, then y = m • 0 + b, so y = b. The number b is the coordinate on the y-axis where the graph crosses the y-axis. What is the coordinate on the y-axis where the graph of y = 2x + 3 crosses y-axis?
2.( 0,4 )Point-slope form = y − y 1 = m ( x − x 1 ) , where ( x 1 , y 1 ) is the point given and m is the slope given.
Step-by-step explanation:
Um , is that the only choices on number 2 and 3?
sorry but that's what I know. it is just like that or i would be explained that one by one?
Answers & Comments
Answer:
1. A.
In the equation y = mx + b for a straight line, the number m is called the slope of the line. Let x = 0, then y = m • 0 + b, so y = b. The number b is the coordinate on the y-axis where the graph crosses the y-axis. What is the coordinate on the y-axis where the graph of y = 2x + 3 crosses y-axis?
2.( 0,4 )Point-slope form = y − y 1 = m ( x − x 1 ) , where ( x 1 , y 1 ) is the point given and m is the slope given.
Step-by-step explanation:
Um , is that the only choices on number 2 and 3?
sorry but that's what I know. it is just like that or i would be explained that one by one?
1. a)
m = 2 (0, 4)
Find the value of b.
Answer 1(a):
b) is missing a given, what is the value of m??
you can't find the value of slope without two points, this is a problem with the question. . .
2.
equation of the line is
3.
equation of the line is