题目

which quadrant represents the line that passer through the point(-2,3)with a slope of 3/4
A:3x-4y=17
B:4x+3y=1
C:2x+3y=5
D:3x-4y=-18
Here we go again,seeing another formula for the first time.
2.This formula is called the slope-intercept form:Y = mx + b; m is the slope of a line,b is the y-value of the
y intercept.
3.This formula allow us to quickly figure out things about a line in the coordinate plane without graphing it
point by point.
4.To solve this problem,we need to figure out with answer choice represents slope of 3/4 and contains the
point at (-2,3).
5.First we need to rewrite every answer choice into the slope-intercept form:
But let just do choice D first:
Rewriting it:3X - 4Y = -18
- 4Y = -18 - 3X
Y = (-18)/-4 - (3X)/-4
Y = 3/4 X + 9/2
6.This rewritten equation now shows you slope as 3/4 because this is representing the m in the equation.
7.Now for choices A,B,C do the same.Rewriting each equation

提问时间：2021-03-10

答案