
Home > CAAC > Chapter 13 > Lesson 13.RE2-S > Problem 2-140
2-140.
For the function h(x) = −3x2 − 11x + 4, find the value of each expression below. Homework Help ✎
h(0)
h(2)
h(−1)
For what value(s) of x does h(x) = 0?
Substitute 0 for x and simplify.
h(0) = −3(0)2 − 11(0) + 4
h(0) = 4
See part (a).
h(2) = −30
Be careful of the signs when multiplying negative numbers.
h(−1) = 12
Remember how to multiply fractions.
0 = −3x2 − 11x + 4
Start with the diamond problem and factor using a generic rectangle.