Math Problem Statement

Given f(x) = 2x^2 + 5x + 3, at what point does the graph intersect the y-axis?

Solution

The problem is asking where the graph of the function f(x)=2x2+5x+3f(x) = 2x^2 + 5x + 3 intersects the yy-axis.

To find where a graph intersects the yy-axis, we substitute x=0x = 0 into the equation of the function, since the yy-axis corresponds to x=0x = 0.

Given: f(x)=2x2+5x+3f(x) = 2x^2 + 5x + 3 Substitute x=0x = 0: f(0)=2(0)2+5(0)+3=3f(0) = 2(0)^2 + 5(0) + 3 = 3 Thus, the point where the function intersects the yy-axis is (0,3)(0, 3).

The correct answer is A\text{A}.

Would you like more details or have any questions?

Here are 5 related questions to deepen your understanding:

  1. How do you determine where a function intersects the xx-axis?
  2. Can a quadratic function intersect the yy-axis more than once?
  3. What is the significance of the vertex in the graph of a quadratic function?
  4. How do the coefficients of a quadratic equation affect the graph's shape and direction?
  5. How can we find the roots of f(x)=2x2+5x+3f(x) = 2x^2 + 5x + 3?

Tip: The y-intercept is always found by setting x=0x = 0 in any function.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Functions
Intercepts

Formulas

f(x) = 2x^2 + 5x + 3
Substitute x = 0 to find y-intercept

Theorems

Intercept Theorem
Quadratic Function Properties

Suitable Grade Level

Grades 8-10