MATH 110 EXAM QUESTIONS AND ANSWERS 2026 GRADED A

X and Y coordinates The x coordinate is a given number of pixels along the horizontal axis of a display starting from the pixel (pixel 0) on the extreme left of the screen. The y coordinate is a given number of pixels along the vertical axis of a display starting from the pixel (pixel 0) at the top of the screen. x-intercept the x-coordinate of a point where a line, curve, or surface intersects the x-axis. Slope of a line The slope of a line (also called the gradient of a line) is a number that describes how "steep" it is. the slope or gradient of a line is a number that describes both the direction and the steepness of the line. point-slope form the equation of a straight line in the form y − y1 = m(x − x1) where m is the slope of the line and (x1, y1) are the coordinates of a given point on the line — compare slope-intercept form. linear equations an equation between two variables that gives a straight line when plotted on a graph. square function square map is a function defined on all real numbers that sends any real number to its square, i.e., its product with itself Interpolation Interpolation is an estimation of a value within two known values in a sequence of values. Extrapolation an estimation of a value based on extending a known sequence of values or facts beyond the area that is certainly known Range and Domain The domain is the set of all possible x-values which will make the function "work", and will output real y-values. The range is the resulting y-values we get after substituting all the possible x-values. Vertical shift A vertical shift is when the graph literally moves vertically, up or down. When a function shifts vertically, the y-value changes. Absolute Value the magnitude of a real number without regard to its sign. How far a number is from zero. difference quotient The difference quotient is used to calculate the slope of the secant line between two points on the graph of a function, f Quadratic Formula to solve quadratic equations (polynomial equations of the second degree). The general form of a quadratic equation is , where x represents a variable, and a, b, and c are constants, with . A quadratic equation has two solutions, called roots. parabola