Math Problem Statement
Find the y-intercept of the line y= – 10x+ 1 9 . Write your answer as an integer or as a simplified proper or improper fraction, not as an ordered pair.
Solution
The equation of the line is given as:
The y-intercept is the value of when . Substituting into the equation:
Thus, the y-intercept is:
Would you like more details on how y-intercepts are determined?
Here are 5 related questions for further practice:
- Find the y-intercept of .
- What is the slope of the line ?
- Write the equation of a line with a slope of -3 and a y-intercept of 4.
- Find the x-intercept of .
- Determine if the line is increasing or decreasing.
Tip: The y-intercept is always where the line crosses the y-axis, which occurs when .
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Math Problem Analysis
Mathematical Concepts
Algebra
Linear Equations
Formulas
y = mx + b (Slope-Intercept Form)
Theorems
Y-intercept occurs where x = 0
Suitable Grade Level
Grades 8-10