Practice Set 1

About This Set

Each question here needs one formula used once: the quadrant of a point, a reflection, the distance or midpoint formula, a slope, an intercept, a centroid or the area of a triangle. Nearly every wrong answer in this set starts with a sign: $4 - (-2)$ worked out as 2, the slope of $ax + by + c = 0$ taken as $\frac{a}{b}$ when it is $-\frac{a}{b}$, or the x-intercept of $ax + by = c$ read as $a$ when it is $\frac{c}{a}$. Allow about 20 minutes. If 21 or more come out correct, the single steps are secure and Practice Set 2 is next.