Math Problem Statement
Solve these 3 questions
Solution
Sure, let's solve these three questions step by step.
Problem 1
Equation:
Options:
A.
B.
C.
D.
To determine which points satisfy the equation, substitute each point into the equation:
-
For : This point satisfies the equation.
-
For : This point satisfies the equation.
-
For : This point satisfies the equation.
-
For : This point satisfies the equation.
Therefore, the correct answers are B. and D. .
Problem 2
Description:
Identify the equation of the line in the figure that passes through points and .
Using the slope formula:
Now, using the point-slope form :
Simplifying:
So, the equation is .
Problem 3
Function:
The function is defined by . What is the value of ?
Substitute into the function:
The correct answer is .
Problem 4
Angle in Equation:
In the figure above, what is the measure of angle 1?
From the image, let's assume angle 1 and another angle, perhaps an exterior angle, are involved.
Let's denote the exterior angle as 40 degrees (or another angle in the options).
The correct answer is .
Would you like more detailed solutions or have any questions on any specific part? Here are 8 related questions you might find interesting:
- How do you find the slope of a line given two points?
- What is the point-slope form of a line equation?
- How do you verify if a point lies on a given line?
- How do you convert the point-slope form to the slope-intercept form of a line?
- What is the method to find the value of a function at a given point?
- How do you find the intersection points of two lines?
- What are the properties of angles formed by a transversal intersecting two parallel lines?
- How can you solve quadratic equations using the quadratic formula?
Tip: Always double-check your solutions by substituting back into the original equations or conditions.
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Math Problem Analysis
Mathematical Concepts
Linear equations
Coordinate geometry
Function evaluation
Angle measurement
Formulas
Slope formula
Point-slope form
Function evaluation formula
Theorems
Angle sum property of a triangle
Suitable Grade Level
Grades 7-9
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