Math Problem Statement
whats the x-intercept, y-intercept, and slope of y = 4x + 3
Solution
To determine the x-intercept, y-intercept, and slope of the line :
1. Slope:
The slope of a line is the coefficient of in the slope-intercept form , where is the slope.
Here, .
Slope = 4
2. Y-Intercept:
The -intercept is the value of when .
Substitute into :
Y-Intercept = (0, 3)
3. X-Intercept:
The -intercept is the value of when .
Set in :
Solve for :
X-Intercept =
Summary:
- Slope:
- Y-Intercept:
- X-Intercept:
Would you like a graph or further explanation? 😊
Here are 5 related questions to deepen understanding:
- How do you find the slope of a line from two points?
- What is the equation of a line parallel to ?
- How do you find the equation of a line given its slope and a point?
- What changes if the slope in is negative?
- Can a line have no x-intercept or y-intercept? Why?
Tip: To verify intercepts, always substitute the relevant variable (either or ) into the equation.
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Math Problem Analysis
Mathematical Concepts
Linear Equations
Intercepts
Slope-Intercept Form
Formulas
Slope-Intercept Form: y = mx + b
Finding the x-intercept: Set y = 0 in the equation
Finding the y-intercept: Set x = 0 in the equation
Theorems
Properties of Linear Equations
Suitable Grade Level
Grades 7-9