Share
Find y when x = 4 in quadratic equation
Published on October 19, 2024
Algebra
To find y when x = 4, substitute x = 4 into the equation y = 2x² - 3x + 1. Solving gives y = 21.
Question
y = 2x² - 3x + 1 Find the value of y when x = 4
Answer
To find the value of y when x = 4, we need to substitute x = 4 into the equation and then solve for y.
-
Substitute x = 4 into the equation:y = 2(4)² - 3(4) + 1
-
Calculate the exponent:y = 2(16) - 3(4) + 1
-
Perform the multiplications:y = 32 - 12 + 1
-
Calculate the sum:y = 21
Therefore, when x = 4, the value of y is 21.